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Two blue sapphires side by side
Article
G&G Announces Most Valuable Article Awards

G&G announces the winners of the Dr Edward J. Gübelin Most Valuable Article Awards for 2019.

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Zircon
Article
Zircon History and Lore

Many people have heard of zircon but never seen it. This is mostly because of colourless zircon’s wide use as a diamond simulant in the early 1900s.

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Turquoise
Article
Turquoise History and Lore

Turquoise is one of the world’s most ancient gems. Archaeological excavations revealed that the rulers of ancient Egypt adorned themselves with turquoise jewellery, and Chinese artisans were carving it more than 3,000 years ago.

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Tourmaline
Article
Tourmaline History and Lore

Somewhere in Brazil in the 1500s, a Spanish conquistador washed the dirt from a green tourmaline crystal and confused the vibrant gem with emerald. His confusion lived on until scientists recognised tourmaline as a distinct mineral species in the 1800s.

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97.45-carat Imperial Topaz
Article
Topaz History and Lore

Most authorities agree that the name topaz comes from Topazios, the old Greek name for a small island in the Red Sea, now called Zabargad. (The island never produced topaz, but it was once a source of peridot, which was confused with topaz before the development of modern mineralogy.)

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Tanzanite
Article
Tanzanite History and Lore

Tanzanite is relatively new to the coloured stone galaxy. Almost overnight, tanzanite became popular with leading jewellery designers and other gem professionals, as well as with customers who had an eye for beautiful and unusual gems.

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Inscribed spinel
Article
Spinel History and Lore

Spinel is a good candidate for the title of “History’s Most Under-appreciated Gem”. Some ancient mines that supplied gems for royal courts from Rome to China produced spinel, but it was usually confused with better-known stones like ruby and sapphire.

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Sapphire
Article
Sapphire History and Lore

Traditionally, sapphire symbolises nobility, truth, sincerity and faithfulness.

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Ruby
Article
Ruby History and Lore

The name ruby comes from the Latin word ruber, which means “red”. The glowing red of ruby suggested an inextinguishable flame burning in the stone...

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Peridot
Article
Peridot History and Lore

Peridot has always been associated with light. In fact, the Egyptians called it the “gem of the sun”.

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