Tag Archives: large gemstones

5565-carat ‘Lion’ emerald sells

November 23, 2018

The 5565-carat ‘Inkalamu’ emerald, discovered at Zambia’s Kagem mine last month, has sold.

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Largest topaz of its kind to go on display

September 29, 2016

London’s Natural History Museum will play host to one of the world’s most flawless, large gemstones. The Ostro Stone will be on permanent display in the museum’s minerals gallery.

Max Ostro discovered the 9381-carat stone three decades ago in Brazil, and it has been locked in the family safe ever since. The stone—which is 15 centimetres in length and weighs around two kilograms—radiates a vivid blue colour that is rarely achieved in topaz stones.

The … Continue reading Largest topaz of its kind to go on display

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Rare Burmese ruby up for auction

March 24, 2016

A 15.99-carat Burmese ruby leads Christie’s Magnificent Jewels auction next month. Named ‘Jubilee Ruby,’ the stone is said to be the most important Burmese ruby to appear at auction in the United States in more than 25 years, the last time being when a 16.20-carat stone sold at Christie’s in 1990.

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‘Hope Spinel’ sells for $1.5 million at auction

September 25, 2015

A rare 50.13-carat octagonal-cut spinel has smashed the world-record price for a faceted stone of its kind.

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World’s largest Paraiba tourmaline unveiled

October 30, 2013

A nearly 200-carat Paraiba tourmaline is the centrepiece of a necklace created by Montreal retailer, Kaufmann de Suisse.

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Zambia yields 6225-carat emerald find

March 1, 2010

A 6225-carat rough emerald has been unearthed at Gemfields’ Kagem mine in Zambia.

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