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BOW TIE EFFECT [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-12-04

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

A dark reflective pattern created when the pavilion main facets are cut on the same index as the crown main facets.

OBS

A pattern seen through the table of marquise, oval and pear-shaped diamonds.

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Région sombre, en forme de nœud papillon, observable à travers la table des diamants taillés en poire, en ovale ou en marquise.

CONT

Les diamants de taille fantaisie comme les tailles en poire, en marquise, en ovale ou encore les tailles à degrés, peuvent présenter un «effet papillon» [...] lorsque l'angle des facettes de la culasse est incorrect.

Spanish

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