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Grading the Hope diamond

One of the most popular exhibits at the Smithsonian Institution, the stunning Fancy Dark grayish blue Hope diamond was formally graded by GIA’s gem laboratory.

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Famous Diamonds Examined by GIA

An aura of mystery has always surrounded these natural wonders, so it was quite an honor when GIA researchers examined these famous diamonds.

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Bursts of yellow and purple radiate throughout this round cut amertrine.
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Colorblocking: The Art and Fashion of Multicolor Gemstones

The fashion trend of colorblocking can be found in the artistic combinations of color in multicolor gemstones known for their color zoning or banding.

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13 ct emerald from Belmont mine’s underground tunnel
Fortieth Anniversary of the Belmont Mine

Marcelo Ribeiro offers an update on mining and cutting activities at the Belmont emerald mine in Brazil.

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Flora and fauna brooches by Paula Crevoshay
Preview of Nature Art Science with Paula Crevoshay

Renowned designer Paula Crevoshay discusses artistic influences and her latest creations.

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Colored stone pendants designed by Erica Courtney
Designs from Erica Courtney

Award-winning jewelry designer Erica Courtney presents four of her creations.

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Large sunstone rough from the Ponderosa mine in Oregon
Ponderosa Sunstone Update

John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.

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Russian demantoids with pure color and horsetail inclusions
Update on Russian Demantoid Production

Alexey Burlakov shares insights on the current production of Russian demantoid and emeralds.

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Namibian demantoid from the Green Dragon mine, preserved in host rock
Update on the Green Dragon Demantoid Mine in Namibia

Stephan Reif explains the mine-to-market approach at the largest continuously operating demantoid deposit.

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Red beryl from Utah found on the secondary market
Finds from the Secondary Market

Dave Bindra shows some noteworthy pieces he obtained on the secondary market and shares his thoughts on the state of the colored stones market.

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