Sapphire Gemstone | Sapphire Stone – GIA

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Sapphire

The name “sapphire” can also apply to any corundum that’s not ruby, another corundum variety.

Sapphire

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10_189113-1280x720.jpg. The Australian sapphire industry modified mining processing techniques for other materials, such as tin, to create systems like this one at Inverell. Photo by Andrew Lucas/GIA. — The Australian sapphire industry modified mining processing techniques for other materials, such as tin, to create systems like this one at Inverell. Photo by Andrew Lucas/GIA.

Sapphire rough and host rock. Some of these sapphire crystals still have host rock attached, which is fairly rare in Australia. Photo by Vincent Pardieu/GIA.. サファイアの原石と母岩 — Some of these sapphire crystals still have host rock attached, which is fairly rare in Australia. Photo by Vincent Pardieu/GIA.

Rainbow Over Montana bracelet. Figure 1. The “Rainbow Over Montana” bracelet contains 76.83 carats of Montana sapphire (71.42 carats rough and 5.41 carats faceted). The ring from the same collection contains 11.57 carats of rough and 1.12 carats of faceted Montana sapphires. Photo by Robert Weldon/GIA; courtesy of Paula Crevoshay. — Figure 1. The “Rainbow Over Montana” bracelet contains 76.83 carats of Montana sapphire (71.42 carats rough and 5.41 carats faceted). The ring from the same collection contains 11.57 carats of rough and 1.12 carats of faceted Montana sapphires. Photo by Robert Weldon/GIA; courtesy of Paula Crevoshay.

SU15-GNI-fig47_185333-468x468.jpg. Rock Creek cut sapphire

SU15-GNI-fig45_185337-636x358.jpg. Sapphire-rich colluvium

SU15-GNI-fig46_185335-468x468.jpg. Rock Creek sapphires before and after heating

SU15-GNI-fig44_185339-636x358.jpg. Gem Mountain mining site

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This Month's

Featured Gems

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PERIDOT

Found in lava, meteorites, and deep in the earth’s mantle, yellow-green peridot is the extreme gem.

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FANCY COLOR DIAMOND

Dazzling brilliance. Captivating color. These are the planet’s most valued gems.

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DIAMOND

Diamonds are among nature’s most precious and beautiful creations.

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EMERALD

Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.

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CITRINE

Citrine is the transparent, pale yellow to brownish orange variety of quartz.

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