TERMIUM Plus®

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length-to-width ratio [1 record]

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Record 1 2004-07-13

English

Subject field(s)
  • Gemmology
  • Diamond Industry
DEF

The comparison of the length and width of the girdle outline on marquise, emerald, pear-shape, and oval cuts, determined by dividing the length by the width.

CONT

Describe a typical polishing sequence for a princess shape: ... f) brillianteer the diamond: create the stars: shape of the stars varies depending on the diamond's length-to-width ratio, crown height and table size ...

OBS

The width is expressed as 1. Some length-to-width ratios are considered more pleasing than others; these include: marquise, 1.75-2.25:1; oval, 1.33-1.66:1; emerald cut and pear shape, 1.50-1.75:1.

Key term(s)
  • length to width ratio

French

Domaine(s)
  • Gemmologie
  • Industrie diamantaire
DEF

Rapport obtenu en divisant le pourtour du rondiste d'une taille marquise, émeraude, poire ou ovale, par sa largeur.

Spanish

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