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MISE HUIT [7 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 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 1

Record 2 2007-01-19

English

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

French

Domaine(s)
  • Outillage industriel
  • Industrie diamantaire
Key term(s)
  • machine de mise en croix et mise en huit automatique
  • machine de blocking automatique
  • machine de mise en croix et en huit automatique

Spanish

Save record 2

Record 3 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 3

Record 4 2006-02-03

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The second profile cutting operation of a brilliant-cut diamond.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Seconde opération de l'ébauchage d'un diamant taillé en brillant.

CONT

Mise en croix et en huit : Taille des 18 premières facettes de la taille brillant. 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.

OBS

À cette étape, la pierre comporte 17 facettes.

Spanish

Save record 4

Record 5 2005-02-10

English

Subject field(s)
  • Gemmology
  • Diamond Industry
CONT

... d) block the diamond to address problems: ensure that options are left open, i.e. do not jeopardize a possible alternative for the diamond: special care must be taken not to over-block the diamond ...

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire

Spanish

Save record 5

Record 6 2004-07-14

English

Subject field(s)
  • Gemmology
  • Diamond Industry
OBS

Figure C/B 13.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire

Spanish

Save record 6

Record 7 2004-07-14

English

Subject field(s)
  • Gemmology
  • Diamond Industry
OBS

Figure C/B 14.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire

Spanish

Save record 7

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