TERMIUM Plus®

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

CULASSE PROFONDE [4 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 2017-05-11

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

An optical effect caused by the reflection of the girdle through the table facet in a diamond having a shallow pavilion.

CONT

... it is essential to maintain the diamond's symmetry and to ensure that the diamond has optimum brilliance, for example: pavilion angles that are too flat can cause a fish eye: fish eyes are only desired on coloured diamonds: create geometric colour induction.

CONT

Sometimes the face-up view displays a white circle resembling a skinny donut ... In the trade, this is called a fisheye.

PHR

fisheye diamond

Key term(s)
  • fisheye effect

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Effet d’optique causé par la réflexion du rondiste à travers la table d’un diamant dont la culasse est peu profonde.

CONT

Parfois, lorsqu’un diamant est observé du dessus, on perçoit un cercle lumineux dont la forme rappelle celle d’un beigne [...] On désigne ce cercle lumineux par l’expression «œil de poisson».

PHR

diamant en œil de poisson

Spanish

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Record 3 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 3

Record 4 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 4

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