Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.
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Join GIA’s recent field expedition to the ruby rush in Madagascar’s Zahamena National Park.
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See inside the world’s most productive ruby mining operation with GIA’s field gemmology team.
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Visit gem mining areas in Madagascar, Kenya, Tanzania, Zambia and Mozambique with GIA’s field gemmologists.
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“Jewels of Hollywood”, on loan from the Kazanjian Foundation, showcases some of the jewellery and accessories associated with Hollywood royalty.
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GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
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G&G announces the winners of the Dr Edward J. Gübelin Most Valuable Article Awards for 2019.
Read MoreRuby is the most valuable variety of the corundum mineral species, which also includes sapphire
Read MoreThe name ruby comes from the Latin word ruber, which means “red”. The glowing red of ruby suggested an inextinguishable flame burning in the stone...
Read MoreRuby can command the highest prices of any coloured gemstone. The per-carat prices of fine-quality rubies have been rising consistently, and frequently break auction records. Click here to learn about the factors that make ruby so desirable!
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