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FANCY COLOR DIAMOND
Dazzling brilliance. Captivating color. The planet’s most valued gems are fancy color diamonds.
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Research
Update on Mozambique Ruby Mining and Trading
Current activity and production at various sites around Mozambique are reported.
Geology and Development of the Lomonosov Deposit, Northwestern Russia
Reviews diamond discoveries at the Lomonosov deposit, as well as the geology of the Arkhangelsk kimberlite province.
Christmas Tree–Shaped Internal Feature In Diamond
A laser manufacturing remnant in a Fancy yellow diamond creates a unique specimen.
Diamond with Concentric Inclusions
A fancy-color diamond shows inclusions that outline growth layers.
New Designs from Paula Crevoshay
World-renowned jewelry artist Paula Crevoshay displays some of her newest pieces at the Tucson gem shows.
Ferropericlase Inclusion in Diamond
An iridescent inclusion may reveal a diamond’s subsurface origin.
LA Museum Hosts Rare Fancy Colored Diamond Exhibit
Some of the world’s most rare fancy colored diamonds are on display in Los Angeles until March 2017 − but you can see some photos of them here.
Two Large CVD-Grown Synthetic Diamonds Tested by GIA
Two near-colorless rounds, weighing 3.23 and 2.51 ct, were the largest CVD-grown synthetic diamonds GIA has examined.
Cleavage System in Pink Diamond
A Fancy Intense purplish pink diamond with a network of planar cracks and strain-induced bodycolor reveals an aesthetic geometric pattern.
Unusual Graining Structure in Pink Diamond
A Very Light pink diamond showing a uniform plane of color intersecting with a cone of strain that fit perfectly into a colorless hole is studied at the Carlsbad lab.
Intense Blue Diamond with Very High Boron Concentration
A natural Fancy Intense blue diamond submitted to the New York lab shows the highest boron concentration ever reported in a natural specimen.
Digital Photomicrography for Gemologists
A guide to capturing gem inclusion scenes using practical equipment and techniques and the appropriate image-refining software.
