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PAVILION DEPTH [12 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-05-11

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A pavilion depth considerably less than 40%, causing increased light leakage and loss of brilliance.

CONT

A fisheye in a diamond with a shallow pavilion.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Culasse dont le pourcentage de profondeur est nettement inférieur à 40 %; il en résulte une fuite de lumière blanche et une perte de brillance.

CONT

Un «œil de poisson» dans un diamant dont la culasse est peu profonde.

Spanish

Save record 1

Record 2 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 2

Record 3 2005-06-07

English

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

A metal pot into which a diamond is pressed before being inserted into a mechanical dop.

CONT

Set the diamond in the dop, claws and/or pot :... b) for the pavilion : select a press pot suited to the diameter and depth of the diamond; place the press pot containing the diamond into the sleeve : use the pot press; insert the press pot into the dop on the tang...

OBS

Figure C/B 3.

Key term(s)
  • press-pot

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
DEF

Douille métallique qui reçoit le diamant et qui est ensuite placée dans un dop mécanique.

OBS

La pierre est tenue comme dans un mandrin par serrage de mâchoires.

Spanish

Save record 3

Record 4 2004-12-08

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The distance from the girdle plane to the culet, expressed as a percentage of the average girdle diameter on round brilliants, and as a percentage of the width on fancy shapes.

CONT

The pavilion depth percentage can be easily judged from the face-up view.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

Il est facile de déterminer le pourcentage de la profondeur de la culasse en observant un diamant à travers la table.

Key term(s)
  • % de profondeur de culasse

Spanish

Save record 4

Record 5 2004-12-08

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A dark centre which resembles the head of a nail, caused by a pavilion depth greater than 48%.

Key term(s)
  • nail head
  • nail-head

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

Un diamant taillé en tête de clou présente un centre très sombre parce que sa culasse est trop profonde.

Spanish

Save record 5

Record 6 2004-12-07

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

On a polished diamond, a pavilion of a depth which exceeds 44 percent of the average girdle diameter.

CONT

A pavilion depth of 45 percent or more can lead to significant light leakage and consequent loss of brilliance. Stones with deep pavilions may show a dark center when examined through the table.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Culasse d'un diamant taillé dont la profondeur est supérieure à 44 % du diamètre moyen du rondiste.

Spanish

Save record 6

Record 7 2004-11-29

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The distance from the girdle plane to the culet, expressed as a percentage of the average girdle diameter on round brilliants, and as a percentage of the width on fancy shapes.

CONT

Consequently, [older cut] proportions resemble the original rough, with the crown height similar to the pavilion depth.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Distance du plan du rondiste à la pointe de culasse exprimée en pourcentage du diamètre moyen du rondiste, pour les tailles brillant, et en pourcentage de la largeur du rondiste pour les tailles fantaisie.

CONT

Par conséquent, les proportions [des tailles anciennes] rappellent celles du cristal brut d'origine, et sur ces tailles, la hauteur de la couronne est équivalente à la profondeur de la culasse.

Spanish

Save record 7

Record 8 2004-07-15

English

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

Set the diamond in the dop, claws and/or pot :... b) for the pavilion : select a press pot suited to the diameter and depth of the diamond; place the press pot containing the diamond into the sleeve : use the pot press...

OBS

Figure C/B 3.

OBS

Part of pavilion press pot.

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
CONT

Douilles utilisées avec le «wassback» [...]

OBS

Partie d'un press-pot pour culasse.

Spanish

Save record 8

Record 9 2004-07-05

English

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

A tool used to press a diamond into a press pot.

CONT

Set the diamond in the dop, claws and/or pot :... b) for the pavilion : select a press pot suited to the diameter and depth of the diamond; place the press pot containing the diamond into the sleeve : use the pot press...

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
DEF

Outil servant à enfoncer le diamant dans le press-pot.

CONT

Il faut d'abord choisir la profondeur et le diamètre adéquat; ensuite, on place la pierre dans le pot de telle façon que la structure naturelle corresponde aux rainures du pot. À l'aide de la presse, la pierre est enfoncée dans la douille.

Spanish

Save record 9

Record 10 2004-07-05

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

An instrument with a sharp brass or steel blade that marks a line on the girdle; the line serves as a guide for the depth of the crown and the pavilion mains.

CONT

In order to facilitate the levelling of the facets of top and bottom against the girdle, a line can be drawn with a girdle marker on the girdle (this leaves a copper line), which is parallel with the table and at the level of the deepest overhanging natural.

CONT

Perform first bruting: ...i) balance naturals, e.g., use girdle marker: - opposing naturals should be of the same depth; - naturals perpendicular to the table should be left open ...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Instrument muni d'une lame acérée, en bronze ou en acier, utilisé pour tracer une ligne sur un rondiste.

OBS

Pour faciliter l'alignement des facettes de couronne et de culasse par rapport au rondiste, tracer une ligne sur la bande débrutée à l'aide d'un marqueur [...] (il laisse une trace cuivrée), parallèle à la table et à la hauteur du plus long pavillon naturel.

Spanish

Save record 10

Record 11 2004-05-17

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

Along with polish, symmetry is a factor that affects the quality of a diamond’s finish; the table serves as the primary reference for symmetry; considers whether the girdle line (band) is parallel to the table, the degree of concentricity of the girdle in relation to the y axis, and the alignment of the crown facets with the pavilion facets.

OBS

It serves as a guide for the depth of the crown and the pavilion mains.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
CONT

Il est conseillé de dessiner d'abord une ligne de rondiste pour avoir un meilleur aperçu de la forme de la pierre et [aussi pour] tailler les facettes supérieures à la même profondeur dans le rondiste.

OBS

La ligne de rondiste sert de guide pour la profondeur de la taille des facettes principales de couronne et des facettes principales de culasse.

Spanish

Save record 11

Record 12 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 12

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