Ruby is an incredibly durable gemstone if there are no treatment-related durability concerns. - Courtesy Jan Goodman Co. Hardness and toughness Gem and mineral hardness is measured on the Mohs scale.

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Gemstone Investments Ltd., incorporated in the year 1994, is a Small Cap company (having a market cap of Rs 17.49 Crore) operating in Financial Services sector. Gemstone Investments Ltd. key ...

Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading ...