TERMIUM Plus®

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

open culet [1 record]

Record 1 2017-05-11

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A large culet, usually visible to the naked eye through the table.

CONT

External characteristics visible from the crown-side should be mentioned in diamond reports under "comments," i.e. negligible external characteristics, naturals, unusual open culet, growth-lines (graining) surface grain-lines, seam-(knot) lines.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Colette nettement visible à l'œil nu au travers de la table.

CONT

Utilisez les expressions suivantes pour vous aider à définir la dimension de la colette : [...] Grande : visible à l'œil nu [...]

OBS

Si la pointe de culasse est conservée pointue, le diamant est dit avoir une colette fermée ou une culasse fermée. Si la colette est nettement visible, il est dit avoir une culasse ouverte.

Spanish

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