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Blog Archives


The second of the two American Gem Society birthstones for November is Citrine. Citrine is known as the “healing quartz”. This golden gemstone is said to support vitality and health while encouraging and guiding hope, energy and warmth within the wearer. Citrine can be found in a variety of shades ranging from pastel yellow to dark brownish […]

Mountain of Light

The Koh-i-Nur , meaning “Mountain of Light” in Persian language is a 105.6 carat diamond in the most recent cut state, and once the largest known diamond. The Koh-i Nur is believed by some to have originated in the state of Andhra Pradesh in India together with its double, the Darya-ye Noor (the “Sea of […]

Archie for $22M

Christie’s Geneva concluded its fall sale of Magnificent Jewels today, which achieved a total of $80,885,395 (CHF 76,630,850). While full details from the auction were still being calculated this evening, the top lot sold was the Archduke Joseph Diamond (pictured) and it realized $21,506,914. The unmounted cushion-shaped diamond, weighing approximately 76.02 carats, came with purple […]


The Incomparable Diamond is another African diamond, one of the largest ever found in the world – 890 carat! A young girl encountered it in 1984 a pile of rubble collected from old mine dumps of the nearby MIBA Diamond Mine, Democratic Republic of the Congo. The rubble was sorted out during the recovery process […]

Harry Winston’s Ekati Mine…

Mining group BHP Billiton has agreed to sell its 80 percent stake in the EKATI diamond mine in Canada to miner and jeweller Harry Winston for $500 million in cash. The sale, due to complete in the first quarter of next year, will result in an impairment of around $200 million after tax to the […]

Earth Star…

Earth Star Diamond was found at another South African mine of De Beers, the Jagersfontein Mine on May 16, 1967. The diamond came from the 2,500-foot (760 m) level of the volcanic diamond-bearing pipe. The rough gem weighed 248.9 carat and was cut into a 111.59 carat pear-shaped gem with a strong brown color and […]

A Golden Jubilee

The Golden Jubilee Diamond is currently the largest cut diamond in the world. It was found in 1985 as a rough stone of 755.5 carat in the Premier mine, South Africa – one of the most famous diamond mines in the world operated by De Beers. The stone was cut into a 545.67 carat and […]

Mr. & Mrs. Ramaboa

The Lesotho Brown (usually simply called the Lesotho) at 601 carat was the first significant diamond to be recovered at Letšeng and thus became famous as the largest diamond ever discovered (claimed) by a woman. The Lesotho Brown was discovered accidently by Ernestine Ramaboa who is reputed to have walked for four days and four […]

Lesotho Promise…

The Lesotho Promise, a 603 carat diamond stone of exceptional colour was unearthed on 22 August 2006 at the Letseng diamond mine in the mountain kingdom of Lesotho.  Announced on the 4th of October 2006, it is the largest reported find this century and the 15th largest diamond ever found. The diamond was sold at […]

Lucara’s 9.46 carat rare Type II Blue

Lucara Diamond recovered a 9.46-carat rare Type II blue diamond from its Karowe Mine in Botswana. The diamond, the first of its kind found at the mine, will be sold at Lucara’s upcoming November 26 tender. “The recovery of such a rare stone is of great importance to the Karowe asset,” said Lucara president and […]

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