Ruby Gemstone | Ruby Stone – GIA

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Ruby

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.

Ruby

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fig12-223184-636x358.jpg. The main ruby mining areas of northern Mozambique.

fig11-223186-636x358.jpg. Aerial view of MRM ruby washing plant.

fig10-223199-636x.jpg. The main ruby mining areas of northern Mozambique.

fig13-223182-636x358.jpg. A garimpeiro working Mustang Resources’ concession.

Untreated and Heat-treated Rubies. The mixture of these untreated and heat-treated rubies show a range of darker and brighter red colors. Photo: Robert Weldon/GIA. Courtesy: Tommy Wu, Shire Trading Ltd., Hong Kong — The mixture of these untreated and heat-treated rubies show a range of darker and brighter red colors. Photo: Robert Weldon/GIA. Courtesy: Tommy Wu, Shire Trading Ltd., Hong Kong

SU15-GNI-fig43_185341-636x358.jpg. The Crimson Prince ruby shows exceptional color and clarity.

SU15-GNI-fig42_185343v2-468x822.jpg. Mining areas in northern Myanmar.

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This Month's

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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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DIAMOND

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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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