argent 990 contre 925 Couper

Couper
Colored diamonds are primarily cut to emphasize their color. This contrasts with colorless diamonds that are cut to maximize sparkle or brilliance, which in some instances can detract from the natural color of a colored diamond. While colored diamonds still exhibit brilliance, color is the most important characteristic considered when they are being cut.

Forme
While cut describes a diamond’s light performance, dimensions and finish; shape refers to the overall outline of the diamond when viewed from the top (e.g. rond, princess or marquise). It’s important to note that many colored diamonds are cut into non-traditional shapes to enhance their natural color. Due to the rarity of colored diamonds, a specific shape in a specific color may not be available at any given time.

Certification
All Blue Nile colored diamonds are independently analyzed and graded by the Gemological Institute of America (FAMILLE), which is among the most respected laboratories in the diamond industry. Each diamond is accompanied by a colored diamond identification and origin report. This authoritative report lists the diamond’s specifications including its color grade, and ensures its natural origin.

 

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