TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

DIAMOND CROWN [50 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2020-11-18

English

Subject field(s)
  • Yoga and Pilates
CONT

There are many things that are used to identify the crown chakra. The colour for this chakra is violet or white. In the body it governs the brain, the top of the head-midline above the ears and the nervous system. The gland that links them is the pineal gland. Anything that goes wrong with any of these areas will affect the crown chakra. Also, when the energy level is deficient it will affect these parts. The gemstones for this chakra are diamond, amethyst and rock crystal. Lotus and olibanum are used for aromatherapy while the metal for crown chakra is gold. When you see any of these symbols, you should know that they are associated with the crown chakra in the chakra system.

OBS

The seven chakras from the base of the spine to the crown of the head are muladhara (root chakra), swadhisthana (sacral chakra), manipura (solar plexus chakra), anahata (heart chakra), vishuddha (throat chakra), ajna (third eye chakra) and sahasrara (crown chakra).

French

Domaine(s)
  • Yoga et pilates
CONT

Le septième chakra, «chakra coronal [...]», est en lien avec la glande pinéale (épiphyse). Son action porte sur l’activité du cortex cérébral, il a une action importante sur la circulation de l’énergie dans le corps et sur les activités intellectuelles, la concentration et la mémoire. Il harmonise l’énergie yang du corps.

OBS

Les sept chakras sont, du bas de la colonne vertébrale au sommet de la tête : muladhara (chakra racine), swadisthana (chakra sacré), manipura (chakra du plexus solaire), anahata (chakra du cœur), vishuddha (chakra de la gorge), ajna (chakra du troisième œil), sahasrara (chakra de la couronne).

Spanish

Save record 1

Record 2 2017-04-13

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A main facet on the crown and pavilion that is positioned at the widest dimension of the diamond.

CONT

There can be two or four belly facets.

CONT

List the typical facets of a heart shape ...: a) girdle; b) table; 2 head facets; 2 shoulder facets; 2 belly facets; 2 wing facets; 8 stars; 16 halves ...

OBS

Oval, pear, heart and marquise cuts.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Facette principale sur la couronne et la culasse dans la partie la plus large du diamant.

CONT

Les facettes d'excédent peuvent être au nombre de deux ou de quatre.

OBS

Tailles ovale, poire, cœur et marquise.

Spanish

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Record 3 2016-03-07

English

Subject field(s)
  • Mining Equipment and Tools
  • Boring and Drilling (Mines)
  • Equipment (Oil and Natural Gas Extraction)
DEF

A rotary-drilling bit studded with diamonds (usually borts).

CONT

In harder rocks, diamond bits are essential. There are several types of diamond set coring crowns, as they are often called ...

OBS

[The diamond bit] is used for drilling extremely hard rock or in a program of continuous coring.

French

Domaine(s)
  • Outillage et équipement (Exploitation minière)
  • Sondage et forage miniers
  • Outillage (Extraction du pétrole et du gaz)
CONT

Dans les couronnes à diamants (diamants noirs impropres à la joaillerie) les pierres sont «serties» à la main, sur le pourtour de la couronne du carottier, dans des logements ou alvéoles proportionnés à leurs dimensions, tout au moins pour les gros éléments. Pour les petites pierres on se contente d'un alliage métallique, brasé sur le pourtour de la couronne, et dans lequel sont disposés les diamants [...]

Spanish

Campo(s) temático(s)
  • Equipo y herramientas (Explotación minera)
  • Sondeo y perforación (Minas)
  • Equipo para extracción de petróleo y gas natural
DEF

Trépano de sonda de forma anular, que corta la roca con una o varias hileras [...] de diamantes engastados en el metal.

Save record 3

Record 4 2014-06-19

English

Subject field(s)
  • Titles of Internet Pages
  • Wireless and Mobile Communications
OBS

The official... mobile site for The Crown in Canada [provides] information on the Government of Canada's plans for celebrating the Queen's Diamond Jubilee, including details on the Diamond Jubilee medal program and key dates for celebrating the 60th anniversary of Her Majesty's accession to the Throne.

French

Domaine(s)
  • Titres de pages Internet
  • Communications sans fil et mobiles
OBS

[...] le site Web mobile [consacré] à La Couronne au Canada vous [offre] une foule de renseignements sur les plans du gouvernement du Canada en vue des célébrations du Jubilé de diamant de la Reine, y compris des renseignements sur le programme de médailles du Jubilé de diamant et les principales dates des célébrations du 60e anniversaire de l'accession au trône de Sa Majesté.

Spanish

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Record 5 2014-06-19

English

Subject field(s)
  • Various Proper Names
  • Software
  • Wireless and Mobile Communications
OBS

The official application... for The Crown in Canada [provides] information on the Government of Canada's plans for celebrating the Queen's Diamond Jubilee, including details on the Diamond Jubilee medal program and key dates for celebrating the 60th anniversary of Her Majesty's accession to the Throne.

French

Domaine(s)
  • Appellations diverses
  • Logiciels
  • Communications sans fil et mobiles
OBS

L'application [consacrée] à La Couronne au Canada vous [offre] une foule de renseignements sur les plans du gouvernement du Canada en vue des célébrations du Jubilé de diamant de la Reine, y compris des renseignements sur le programme de médailles du Jubilé de diamant et les principales dates des célébrations du 60e anniversaire de l'accession au trône de Sa Majesté.

Spanish

Save record 5

Record 6 2010-04-28

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
DEF

A small metal prong used to hold a diamond in the crown pot or pavilion platform pot.

CONT

[The Germand type dops] have a hollow pot for the top part or a skew pot with a support for the bottom part which serves as a support for the stone, with a single or double claw straight across which holds the stone in the pot.

Key term(s)
  • claws

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
DEF

Petit doigt métallique qui maintient le diamant dans le pot pour couronne ou le pot à angle droit.

CONT

La griffe peut être simple ou double selon la pierre à retenir et deux vis latérales de réglage permettent d'abaisser ou de soulever les griffes ou le support.

Spanish

Save record 6

Record 7 2007-01-19

English

Subject field(s)
  • Occupation Names (General)
  • Gemmology
  • Diamond Industry
DEF

The diamond cutter who polishes the final sequence of 24 crown and 16 pavilion facets, and gives all the facets their finishing polish.

CONT

Brillianteers :-create the final fire and brilliance of a polished diamond by polishing the final 40 facets to correct angles and indices, including the : 8 stars; 16 crown halves; 16 pavilion halves;-may re-smooth the table.

OBS

brillianteerer : A name, derived from the Dutch word briljanteerder, given to the diamond cutter who polishes the final sequence of 24 crown and 16 pavilion facets, and gives all the facets their finishing polish.

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Gemmologie
  • Industrie diamantaire
DEF

Tailleur chargé de la taille des 24 dernières facettes de couronne et des 16 dernières facettes de culasse, ainsi que de leur polissage.

CONT

En règle générale, un brillant est taillé par des personnes différentes : tout d'abord, par le tailleur en croix qui taille la table, les quatre facettes principales de couronne et les quatre autres de culasse, puis ensuite, dans certains cas, par le tailleur en 8/8 et enfin par le brillanteur.

Spanish

Save record 7

Record 8 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

[The] relative dimensions and angles of a polished diamond and the relationships between them; these include table size, crown angle, crown height, girdle thickness, pavilion angle, pavilion depth, culet size, girdle outline, length-to-width ratio, and total depth.

CONT

The proportions, the relationship between the various parts of the stone, determine the fire and brilliance of the diamond. If the proportions are not optimal, undesirable visual effects may occur.

CONT

Proportionscope: An optical instrument marketed by the Gemological Institute of America to compare the proportions of a brilliant-cut diamond with those of the Tolkowsky theoretical brilliant cut.

Key term(s)
  • proportion

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Dimensions considérées par référence à une mesure, une échelle.

CONT

Les proportions ou rapports internes entre les différentes parties du diamant déterminent le feu et la brillance de la pierre. Si les proportions ne sont pas idéales, il peut apparaître des effets visuels indésirables.

CONT

Proportionscope : Instrument d'optique vendu par la Gemological Institute of America et servant à comparer les proportions d'un diamant taillé en brillant avec celles du brillant idéal américain tel que conçu par Marcel Tolkowsky.

Key term(s)
  • proportion

Spanish

Save record 8

Record 9 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

To create the final 40 facets: 8 stars, 16 crown halves, 16 pavilion halves.

CONT

Describe the traditional polishing sequence : a) crosswork the diamond :-follow company policies and cut specifications for the angles and indices;-block the diamond :...-lap the diamond :... b) brillianteer the diamond : create the final 40 facets : 8 stars; 16 crown halves; 16 pavilion halves; re-smooth the table, if required.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Placer les 40 dernières facettes : 8 étoiles, 16 haléfis de couronne et 16 haléfis de culasse.

CONT

On brillante le diamant notamment lors d'une taille brillant.

Spanish

Save record 9

Record 10 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A diamond with the table aligned approximately to the octahedral plane; a result of polishing or cleaving; the table may be polished in any one of three directions; the table is very hard to polish if not tilted properly; the polishing direction of the crown and pavilion facets is more difficult than that of a 4-point.

OBS

pointer: Do not confuse with "pointer," synonym of "point."

Key term(s)
  • 3-point stone
  • 3-pointer

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Diamant dont la table était à l'origine la face d'un octaèdre à trois pointes.

OBS

Ne pas confondre avec «diamant de trois points» qui est un diamant pesant trois centièmes de carat.

Key term(s)
  • diamant 3 pointes

Spanish

Save record 10

Record 11 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A crown main facet indexed at 45° to crown corner facets.

CONT

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond by : establishing the initial 17 main facets, including the :-table;-8 pavilion mains, to specific angles and indices : 4 corners; 4 pavilions;-8 crown mains, to specific angles and indices : 4 corners; 4 bezels. 2. lapping the diamond...

OBS

The four facets between the top corner facets.

Key term(s)
  • bezeel

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Facette résultant de la taille en 8/8.

OBS

Les bezels sont taillés entre les coins de la taille en croix.

Spanish

Save record 11

Record 12 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe the traditional polishing sequence: a) crosswork the diamond: - follow company policies and cut specifications for the angles and indices; - block the diamond: ... - lap the diamond: ... b) brillianteer the diamond: ...

CONT

Describe a typical polishing sequence for rectangular and square emerald shapes :... b) crosswork the diamond : leave proof of naturals or inclusions, if possible; create the girdle facets; create the crown breaks; create the pavilion breaks...

OBS

Consists of two steps: the blocking and the lapping of the diamond.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
OBS

Comprend deux étapes : le mise en croix et en huit (ou blocking) et le rétablissement de la symétrie et polissage (ou lapping).

Spanish

Save record 12

Record 13 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

... the first stage of the diamond faceting operation in which the table facet and the first eight crown and eight pavilion facets are cut by the blocker or cross cutter.

CONT

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond by : establishing the initial 17 main facets, including the :-table;-8 pavilion mains, to specific angles and indices : 4 corners; 4 pavilions;-8 crown mains, to specific angles and indices : 4 corners; 4 bezels. 2. lapping the diamond...

CONT

16/8/8R switch. Selection of the cycle: 16 for halves, 8 for the corners and pavilions or bezels, 8R for blocking in eight cut.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Taille des 18 premières facettes de la taille brillant.

CONT

Commutateur 16/8/8R. Choix du cycle : .16 pour les haléfis, .8 pour les angles et les bezels, .8R pour le blocage en 8/8.

OBS

La mise en croix consiste à tailler la table, les quatre coins de la couronne et de la culasse et la colette. La mise en huit comprend les quatre bezels de la couronne et les facettes correspondantes sur la culasse.

Spanish

Save record 13

Record 14 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe crossworking : a) establishes symmetrical crown and pavilion main facets to specific angles and indices b) consists of two steps :-blocking the diamond... lapping the diamond...

CONT

Polishing: Removing material from a diamond to form facets; done in stages; crossworking (to set main facets), brillianteering (to finish the diamond); also referred to as cutting, grinding, running and smoothing.

OBS

blocking :[The] process of placing the table, the first four facets on the crown, and the first four facets on the pavilion of a rough or prepared diamond. To a large extent, blocking determines the symmetry and weight of the polished diamond as well as its brilliance and dispersion. In stones under 50 points, the process is often combined with cross-working.

Key term(s)
  • cross working
  • cross-working

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Taille des facettes principales de couronne et de culasse à des angles et positions spécifiques.

Spanish

Save record 14

Record 15 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe the traditional polishing sequence : a) crosswork the diamond :-follow company policies and cut specifications for the angles and indices;-block the diamond : create the table; mark the girdle for the pavilion; create 8 pavilion mains : 4 corners; 4 pavilion facets; re-mark the girdle for the crown; create 8 crown mains : 4 corners; 4 bezels; ensure the crown and the pavilion facets are in alignment;-lap the diamond :... b) brillianteer the diamond :...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
OBS

Création des 8 facettes principales de culasse : 4 coins, 4 pavillons; marquage du rondiste; création des 8 facettes principales de couronne : 4 coins, 4 bezels; vérification de la symétrie des facettes de couronne et de culasse.

Spanish

Save record 15

Record 16 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A diamond with the table aligned approximately to the dodecahedral plane; table may be the result of sawing and polishing; the table may be polished in one of two directions; the most difficult polishing direction for the crown, pavilion and girdle facets.

OBS

two-point diamond: Also a diamond weighing 0.02 ct.

OBS

pointer: Do not confuse with "pointer," synonym of "point."

Key term(s)
  • 2-point stone
  • 2-pointer

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Nom donné au diamant dont la table est sur le plan de sciage passant par seulement deux pointes de l'octaèdre et en coupant 2 arêtes opposées.

OBS

Ne pas confondre avec «diamant de deux points» qui est un diamant pesant deux centièmes de un carat.

Key term(s)
  • diamant 2 pointes

Spanish

Save record 16

Record 17 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The polishing of the final 40 facets(stars, crown halves and pavilion halves) in diamond processing that creates the brilliance of the diamond.

CONT

Polishing: Removing material from a diamond to form facets; done in stages; crossworking (to set main facets), brillianteering (to finish the diamond); ...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Taille des 40 dernières facettes de la taille brillant après la mise en croix et la mise en huit.

CONT

Le brillantage se fait en fin du processus de la taille brillant du diamant.

Spanish

Save record 17

Record 18 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

[The] intensity of the internal and external reflections of white light from the crown of a polished diamond or other gemstone.

CONT

The proportions, the relationship between the various parts of the stone, determine the fire and brilliance of the diamond. If the proportions are not optimal, undesirable visual effects may occur.

Key term(s)
  • diamond brilliancy
  • diamond brilliance

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Qualité des réflexions internes et externes de la lumière blanche par la couronne d'un diamant taillé.

CONT

Les proportions ou rapports internes entre les différentes parties du diamant déterminent le feu et la brillance de la pierre. Si les proportions ne sont pas idéales, il peut apparaître des effets visuels indésirables.

Spanish

Save record 18

Record 19 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

List typical facets of princess shape: ... c) for the crown: table, 4 girdle breaks, 4 tables breaks, 4 corner facets, 8 stars; d) for the alternative crown: table, 4 girdle breaks, 4 corner girdle facets, 4 table breaks, 8 split stars ...

CONT

The number and types of facets can vary depending on company policy, e. g., omission of end facets(see Figure F 22 and 23, alternative crown), maximum weight retention and dimensions of the diamond.

OBS

Figure F 20.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire

Spanish

Save record 19

Record 20 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
OBS

Corners : The first 4 facets on the pavilion and the crown of a polished diamond; these facets are indexed at 90° to one another and form part of the main facets.

OBS

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond by : establishing the initial 17 main facets, including the :-table;-8 pavilion mains, to specific angles and indices : 4 corners; 4 pavilions;-8 crown mains, to specific angles and indices : 4 corners; 4 bezels. 2. lapping the diamond...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
OBS

Coin : Nom donné aux quatre facettes résultant de la taille en croix de la couronne ou de la culasse.

Spanish

Save record 20

Record 21 2007-01-19

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The first four facets on the pavilion and the crown of a polished diamond.

CONT

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond by : establishing the initial 17 main facets, including the :-table;-8 pavilion mains, to specific angles and indices : 4 corners; 4 pavilions;-8 crown mains, to specific angles and indices : 4 corners; 4 bezels. 2. lapping the diamond...

OBS

These facets are indexed at 90° to one another and form part of the main facets.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Facette résultant de la taille en croix de la couronne ou de la culasse.

Spanish

Save record 21

Record 22 2006-01-25

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe shape : a) the geometric form of a diamond; b) the final shape is dictated by the form of the rough diamond and the presence and position of any inclusions... c) the most common shape is a round brilliant : a diamond polished in a round shape has at least :-33 facets on the crown, including the table;-24 facets on the pavilion with an optional facet, the culet; d) all other shapes(i. e., excluding round brilliant) are referred to as fancy...

CONT

Most people gravitate toward the round brilliant cut in diamonds, for that is the cut which makes the most of the light, the most effective and efficient with light return.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

La forme rond brillant avec 58 facettes est la plus chère.

Spanish

Save record 22

Record 23 2004-12-08

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The angle measured between the girdle plane and the bezel facets.

CONT

Crown angle and table size together determine the amount of dispersion a finished diamond displays.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

Estimez l'angle de couronne à partir du profil que forment la table et les bezels et non pas la table, les étoiles et les haléfis de couronne.

Spanish

Save record 23

Record 24 2004-12-03

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A brilliant-cut crown and a step-cut pavilion, or vice versa.

CONT

Mixed cut : Has both step-and brilliant-cut facets. The pavilion, for example, can be step cut and the crown can be brilliant cut, but the step-and brilliant-cut facets can also be scattered over the diamond. This cut is used a lot more on transparent colored stones than on diamonds.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Combinaison de la taille à degrés et de la taille brillant; par exemple, les facettes de la couronne sont taillées en brillant et celles de la culasse sont taillées à degrés, ou inversement.

CONT

Taille mixte : Présente les facettes caractéristiques aux deux types de taille, la taille à degrés et la taille en brillant. [...] Cependant, il arrive parfois que des facettes de ces deux types de taille soient réparties un peu partout sur le diamant. On voit plutôt des pierres de couleur, rarement des diamants, taillées de cette façon.

Spanish

Save record 24

Record 25 2004-07-15

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
CONT

Set the diamond in the dop, claws and/or pot :... c) for the crown : using the slit pot method :-select the correct slit pot size : should be approximately 15-20% smaller than the diamond's diameter;-fit the diamond into the slit pot;-lower the claw onto the table facet : ensure the ribs of the pavilion facets fall into the slits of the pot;-turn the dop axle : present the facet for polishing : turn the index adjuster, as required...

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire

Spanish

Save record 25

Record 26 2004-07-15

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
CONT

Set the diamond in the dop, claws and/or pot :... c) for the crown :... using the hollow press pot method :-select the correct hollow press pot according to the diameter of the diamond;-press the diamond into the sleeve using the correct press;-place the hollow press pot in the dop;-lower the claw onto the table facet;-adjust the index by turning the dop axle or the index adjuster.

Key term(s)
  • hollow press-pot

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
Key term(s)
  • press pot creux

Spanish

Save record 26

Record 27 2004-07-15

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe the traditional polishing sequence : a) crosswork the diamond :-follow company policies and cut specifications for the angles and indices;-block the diamond :...-lap the diamond : re-mark the girdle for the pavilion; smooth : 4 corners; 4 pavilion facets; re-mark the girdle for the crown; smooth : 4 corners; 4 bezels; table; if a facetted culet is desired, create the facet after the second corner is smoothed; ensure the crown and the pavilion facets are in alignment; b) brillianteer the diamond :...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire

Spanish

Save record 27

Record 28 2004-07-14

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
CONT

... typical supplies and equipment used by crossworkers/brillanteers: ... u) pots for all shapes and types of diamonds including: crown pots; pavilion press pots ...

CONT

Claws : Small metal prongs used to hold a diamond in the crown pot or pavilion platform pot.

OBS

Figure C/B 3a.

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire

Spanish

Save record 28

Record 29 2004-07-13

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The comparison of the length and width of the girdle outline on marquise, emerald, pear-shape, and oval cuts, determined by dividing the length by the width.

CONT

Describe a typical polishing sequence for a princess shape :... f) brillianteer the diamond : create the stars : shape of the stars varies depending on the diamond's length-to-width ratio, crown height and table size...

OBS

The width is expressed as 1. Some length-to-width ratios are considered more pleasing than others; these include: marquise, 1.75-2.25:1; oval, 1.33-1.66:1; emerald cut and pear shape, 1.50-1.75:1.

Key term(s)
  • length to width ratio

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Rapport obtenu en divisant le pourtour du rondiste d'une taille marquise, émeraude, poire ou ovale, par sa largeur.

Spanish

Save record 29

Record 30 2004-07-13

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Describe a typical polishing sequence for rectangular and square emerald shapes :... b) crosswork the diamond : leave proof of naturals or inclusions, if possible; create the girdle facets; create the crown breaks; create the pavilion breaks...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
OBS

Taille émeraude.

Spanish

Save record 30

Record 31 2004-07-13

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The perpendicular distance between the plane of the girdle and the plane of the table facet, measured as a percentage of the girdle diameter.

CONT

The crown height is measured from the girdle plane to the table plane and is expressed as a percentage of the girdle diameter which is 100%. In the Tolkowsky brilliant cut, the crown thickness is 16. 2% of the girdle diameter, Johnson and Roesch ideal cut 19. 2%, Scandinavian Diamond Nomenclature Standard cut 14. 6%, Eppler fine cut 14. 4%, Parker brilliant 10. 5%.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

La hauteur de la couronne se calcule du plan du rondis au plan de la table et s'exprime en pourcentage du diamètre du rondis qui représente 100 %. Dans le brillant Tolkowsky, la hauteur de la couronne est 16.2 % du diamètre du rondis, dans la taille idéale Johnston et Roesch 19.2 %, dans le brillant Standard scandinave 14.6 %, dans la taille fine pratique 14.4 %, dans la taille Parker 10.5 %.

Spanish

Save record 31

Record 32 2004-07-05

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Brillianteers :-create the final fire and brilliance of a polished diamond by polishing the final 40 facets to correct angles and indices, including the : 8 stars; 16 crown halves; 16 pavilion halves;-may re-smooth the table.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

Brillanter le diamant : Repolir la table, si nécessaire [...]

Spanish

Save record 32

Record 33 2004-07-05

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A triangular facet located on the pavilion.

CONT

Pavilion halves: The 16 facets located on the pavilion; created during the brillianteering stage.

CONT

Brillianteers :-create the final fire and brilliance of a polished diamond by polishing the final 40 facets to correct angles and indices, including the : 8 stars; 16 crown halves; 16 pavilion halves;-may re-smooth the table.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Facette triangulaire située en bordure de la culasse d'un diamant taille brillant.

OBS

haléfi : Petite facette taillée sur la couronne ou sur la culasse à partir du rondiste.

Spanish

Save record 33

Record 34 2004-07-05

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

One of 8 facets on either the crown or the pavilion of a round brilliant.

CONT

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond by : establishing the initial 17 main facets, including the :-table;-8 pavilion mains, to specific angles and indices : 4 corners; 4 pavilions;-8 crown mains, to specific angles and indices : 4 corners; 4 bezels. 2. lapping the diamond...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

[Une] des huit facettes, soit sur la couronne, soit sur la culasse [...]

Spanish

Save record 34

Record 35 2004-07-05

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The facet above the girdle of a cut gemstone.

CONT

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond... 2. lapping the diamond...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Facette au-dessus du rondis d'une pierre taillée.

Spanish

Save record 35

Record 36 2004-07-05

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
DEF

An accessory used to hold a diamond in a crown pot.

CONT

[The Germand type dops] have a hollow pot for the top part or a skew pot with a support for the bottom part which serves as a support for the stone, with a single or double claw straight across which holds the stone in the pot.

OBS

Part of a tang.

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
DEF

Griffe utilisée pour maintenir un diamant dans un pot pour couronne.

CONT

La griffe peut être simple ou double selon la pierre à retenir et deux vis latérales de réglage permettent d'abaisser ou de soulever les griffes ou le support.

OBS

Partie d'une pince.

Spanish

Save record 36

Record 37 2004-07-05

English

Subject field(s)
  • Gemmology
  • Diamond Industry
OBS

corners : The first 4 facets on the pavilion and the crown of a polished diamond; these facets are indexed at 90° to one another and form part of the main facets.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
OBS

coin : Nom donné aux quatre facettes résultant de la taille en croix de la couronne ou de la culasse.

Spanish

Save record 37

Record 38 2004-07-05

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
CONT

Claws : Small metal prongs used to hold a diamond in the crown pot or pavilion platform pot. Also referred to as fingers for crown dops.

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire

Spanish

Save record 38

Record 39 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A combination of the symmetry and polish of the facets of a polished diamond; one of two considerations for evaluating cut.

CONT

... b) evaluation of a cut includes proportion and finish... finish is composed of symmetry and polish : symmetry relates to :-position of the parts of a diamond in relation to the table...-consistency of the shape and size of the facets, girdle and culet;-roundness of the girdle...-alignment of the crown and pavilion facets with respect to each other;-presence of ghost facets;-presence of naturals;-accuracy of junction points...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Aspect qui combine la symétrie et le poli des facettes d'un diamant taillé.

CONT

[...] le fini est indépendant des proportions, et de moindre importance que la qualité de la taille.

Spanish

Save record 39

Record 40 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The large central facet on the crown of a polished diamond [(or gemstone) ].

CONT

... table: the primary facet that is used as a reference for all other facet angles; ...

PHR

Closed, off-centre, oversized, sloping table.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Grande facette supérieure de la couronne d'un diamant taillé [(ou d'une pierre taillée]) parallèle au rondiste.

PHR

Table fermée, excentrée, étendue, inclinée.

Spanish

Save record 40

Record 41 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A point on a diamond where two facets(crown and pavilion halves) meet one another at the girdle.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Point de rencontre sur le rondiste de deux haléfis de couronne ou de culasse.

Spanish

Save record 41

Record 42 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A round polished diamond with 32 facets plus a table on the crown and 24 facets on the pavilion, for a total of 57 facets; an optional polished culet would provide for a 58th facet.

OBS

brilliant: Without any additional description of the material, may only be applied to round diamonds with brilliant cut.

OBS

Coloured stones cut in this fashion should be called brilliant-cut followed by the name of the mineral (Ex. brilliant-cut ruby).

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Diamant de forme ronde et de taille brillant qui comprend 32 facettes de couronne plus une table et 24 facettes de culasse pour un total de 57 facettes; 58 facettes si une colette est taillée.

OBS

brillant : Employé seul, ne peut s'appliquer qu'au diamant rond taille brillant.

OBS

Les pierres de couleur doivent être appelées par le nom du minéral suivi de taille brillant (Ex. rubis taille brillant).

Spanish

Save record 42

Record 43 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

[A] narrow band which circumscribes the edge of the plane separating the crown and pavilion of a polished diamond.

CONT

Girdle is a sort of rim at the widest part of a diamond by which it is normally set. It is the resulting circumference of the adjoining crown and pavilion angles at the widest part of the stone.

OBS

rondiste: synonym seldom used.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Bord d'un diamant taillé, situé entre la couronne et la culasse.

OBS

Le rondiste peut être «brut» (c'est-à-dire gris), poli (c'est-à-dire lisse comme un miroir), ou encore facetté.

OBS

collerette : terme surtout employé pour décrire le rondis de la taille en rose.

OBS

feuilletis : Bord d'une gemme taillée autre que le diamant, situé entre la couronne et la culasse.

Spanish

Save record 43

Record 44 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A point on a diamond where more than two facets meet.

CONT

... b) evaluation of a cut includes proportion and finish... finish is composed of symmetry and polish : symmetry relates to :-position of the parts of a diamond in relation to the table...-consistency of the shape and size of the facets, girdle and culet;-roundness of the girdle...-alignment of the crown and pavilion facets with respect to each other;-presence of ghost facets;-presence of naturals;-accuracy of junction points...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Point de rencontre d'au moins trois facettes.

Spanish

Save record 44

Record 45 2004-05-17

English

Subject field(s)
  • Industrial Tools and Equipment
  • Diamond Industry
DEF

A gemmological apparatus that is used to examine the proportions of a diamond.

OBS

A device for the projection of the silhouette of a diamond upon a ground-glass screen, on which facet angles, crown height, girdle thickness and pavilion depth may be compared against ideal proportions; introduced in 1967 by the Gemological Institute of America.

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
DEF

Instrument d'optique vendu par la Gemological Institute of America et servant à comparer les proportions d'un diamant taillé en brillant avec celles du brillant idéal américain tel que conçu par Marcel Tolkowsky.

Spanish

Save record 45

Record 46 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The second step of crossworking in which the symmetry is re-established and the facets are smoothed.

CONT

Crossworkers : establish the mains, crown and pavilion facets to specific angles and indices in two steps : 1. blocking the diamond... 2. lapping the diamond by : re-establishing the symmetry of the initial 16 facets(excluding the table) to correct angles and indices; smoothing the facets, including : 8 pavilion mains; 8 crown mains; table.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Retouche de la taille des facettes pour rétablissement de leur symétrie et polissage final.

OBS

La remise en huit, le rétablissement de la symétrie et le polissage.

Spanish

Save record 46

Record 47 2004-04-28

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A triangular facet located on the crown.

CONT

Brillianteers :-create the final fire and brilliance of a polished diamond by polishing the final 40 facets to correct angles and indices, including the : 8 stars; 16 crown halves; 16 pavilion halves;-may re-smooth the table.

Key term(s)
  • upper-half facet

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Facette triangulaire située en bordure de la couronne d'un diamant taille brillant.

OBS

haléfi : Petite facette taillée sur la couronne ou sur la culasse à partir du rondiste.

Spanish

Save record 47

Record 48 1998-07-02

English

Subject field(s)
  • Prosthetic Dentistry
DEF

A mounted stone impregnated with tiny pieces of diamond used in dentistry for cavity and crown and bridge abutment preparations.

French

Domaine(s)
  • Dentisterie prothétique
DEF

Pierre montée imprégnée de petites particules de diamant utilisée en dentisterie pour la préparation des caries, des couronnes et des points d'appui des ponts.

Spanish

Save record 48

Record 49 1998-03-18

English

Subject field(s)
  • Boring and Drilling (Mines)
  • Geological Research and Exploration
  • Oil Drilling
DEF

In well drilling, a long cylindrical vessel which guides an annular toothed bit.

OBS

Its action is like that of a diamond drill. A toothed cutter takes the place of a diamond crown, and is rotated by hollow flushing rods with a strong constant flow of water. A core is cut, preserved in a core barrel and brought to the surface. The drills are made large enough so that the holes are used as shafts.

French

Domaine(s)
  • Sondage et forage miniers
  • Recherches et prospections géologiques
  • Forage des puits de pétrole
CONT

Une technique nouvelle de sondage (calyx) tend maintenant à se répandre, dans laquelle le diamètre du trou d'exploration peut dépasser le mètre. Ceci permet au géologue de descendre dans le trou, à l'aide d'une nacelle spéciale, et de relever directement le dessin des parois; il faut, pour assurer l'orientation du relevé, mettre en place un ou plusieurs fils à plomb.

Spanish

Save record 49

Record 50 1991-10-07

English

Subject field(s)
  • Organizations, Administrative Units and Committees
Key term(s)
  • Crown Diamond Paints

French

Domaine(s)
  • Organismes, unités administratives et comités
Key term(s)
  • Peintures Crown Diamond

Spanish

Save record 50

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