Colored diamonds are usually cut to maximize the intensity of their color rather than to maximize light return. The best cut is one that gives the most attractive face-up color. The opaque color of ...

Fancy color diamonds are among the rarest and most valuable gemstones. Diamonds in the normal color range are colorless through light yellow and are described using the industry’s D-to-Z color-grading ...

Color grading represents a fundamental element of the ... what Bvlgari buyers refer to as “visual appeal.” Bvlgari’s fancy-cut diamonds not only have the best proportions and finish to ensure maximum ...

Fancy colored diamonds, colored gems and signed jewels will be featured at New York auctions from Phillips and Bonhams in ...