Diamonds. Wednesday , July 26th , 2017 - 09:59:50 AM
Color grading scales used by the internationally recognized laboratories (GIA and IGI for example), ranges from totally colorless (D) to pale yellow or brown color (Z). Brown diamonds darker than K color are usually described using their letter grade, and a descriptive phrase, for example M Faint Brown. Diamonds with more depth of color than Z color fall into the fancy color diamond range.
Preservation: At times when you have an antique or a vintage ring that you want to clean up and help it get back its old charm, then remounting is a good option.
The ideal cut for fancy colored diamonds is the Radiant cut. This is the ideal shape so that it is possible to maximize the color. Yellow diamonds, however, can also be found in Oval Cut an Cushion cut and in Heart and Pear shapes. The rarest are the Emerald, Square Emerald and the Brilliant cuts (round shape). The price of these shapes are considerably higher for all fancy diamonds and not merely for yellow diamonds.
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