The Tereschenko Blue Diamond

The precise situation where the Tereschenko Blue Diamond was mined and the appointment it was regained are unknown. However, current wisdom of the diamond has narrowed the mines that could have produced it down to two: the Kollur mines in India, or South Africa's Premier diamond mine, either of which have produced eminent blue diamonds.

Bidding for the blue diamond began at 3 million Swiss francs and was sold for 10 million to Robert Mouawad, a Lebanese diamond dealer known for his accumulation of noted diamonds.

Mikhail Ivanovich, who was named Minister of Foreign Affairs in May 1917, was captured during the October Revolution and caged. He escaped in 1918 and fled to Norway, finally making his way to Paris, where he recovered the necklace and sold the blue diamond.

The Tereschenko Blue Diamond is the second-largest blue diamond in the world, exceeded in size only by the famed Hope Diamond. The Tereschenko, whose color is graded "Fancy Blue," weighs 42.92 carats and carries a merit of over $20 million.

For numerous decades, the Tereschenko Blue Diamond remained out of the public eye. But in 1984, Christie's Geneva branch announced namely it would be selling the diamond. Several diamond dealers requested namely the stone up for auction receive proper certification, which were accomplished via the Gemological Institute of America.

However, since the Premier diamond mine began operations in 1902, and not disc exists of anyone noted blue diamond creature recovered in its early years, it would appear that India's Golconda region is a extra probable source. If that is the circumstance, the Tereschenko Blue Diamond could have been mined at about time dating from the mid-16h centenary.

According to some sources, later the Mouawad bought the diamond its appoint was changed from the Tereschenko Blue to the Mouawad Blue.

Like the diamond's origin, its early history remains obfuscated and the stone can only be traced with precision from the time the Tereschenko household bought it. Mikhail Ivanovich Tereschenko left the diamond at Cartier's in Paris in 1913 and in 1915 told the jeweler to set the blue diamond in a necklet, circled along other fantasy diamonds. Cartier constructed a necklace consisting of 46 diamonds of various colors, fashions, and sizes, which was taken out of Russia in mystery in 1916.

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The Tereschenko or Mouawad Blue Diamond received its unusual hue through exposure to boron when it was being fashioned. Natural blue diamonds account for merely 0.1% of always normal diamonds, and are unique among colored diamonds in that they are semi-conductors of electricity. Irradiation tin elicit a blue tint into a colorless diamond, but artificially colored diamonds are thought fewer expensive than the quite rare natural colored diamonds.