The Tereschenko Blue Damond
The original owners of this gem were the Tereschenko family. They were sugar-kings in pre-communist Russia. One member, Mikhail (1886-1956), who held advanced political views, became Kerensky’s Minister of Foreign Affairs in 1917. Four years earlier, Mikhail had deposited the diamond with Cartier in Paris. In 1915 he instructed Cartier to remount the gem as the centerpiece in a necklace containing a variety of fancy colored diamonds.
The jewel was unique in combining forty-six marquise, round, pear and heart-shaped diamonds ranging from 0.13 to 2.88 carats. Their colors were described as “jonquil, lemon, aquamarine, sultana-green, golden button, grey, blue, crevet, lilac, rose, old port, madeira and topaz.” As such, the necklace ranked among the most important creations of this century in fancy colored diamonds.
In 1916, on the eve of the Russian Revolution, the Tereschenko Diamond was secretly taken out of Russia and then passed into private ownership.
It mysteriously came up for sale on November 14th, 1984 and was auctioned-off to Robert Mouawad, a Saudi diamond dealer for a price of $4,508,196.