The world's rarest gemstone is made of kyawthuite, a transparent reddish-orange mineral that’s known from just one sample ...

"Mandarin garnet" specimens are the most in demand and the most expensive. Spessartine gem quality stones are rarely larger ...

A troy ounce bar of gold is worth a hefty sum of money, but the same amount of this mineral is worth over a hundred million times more.

Of course, the bigger the gemstone, the higher the price, so take a look at 11 Biggest Gemstones in the World.

With its appeal to Asian collectors, the gemstone is growing in value; jewellery expert Sze Sze takes us through the basics of appreciating jadeite ...

This material was called jadeite, a reference to the semi-precious gemstone the material resembled. Courtesy of Better Homes & Gardens ...

Ruby and jadeite are proposed at the first tectonic gemstones. What do they reveal about the history of plate tectonics?

An art-deco jadeite, enamel, gem-set and diamond brooch from Cartier, circa 1927, is shown at a Sotheby's jewels and jadeite autumn sale media preview. Jadeite pieces can fetch high prices.

The market for Burmese jadeite is notably complex and dynamic, with prices varying widely based on the gemstone’s quality and specific characteristics.