UK: Sotheby’s to auction Russian Imperial jewels for millions

Sotheby’s Auction House in London held a photocall on Tuesday to display two Russian Imperial diamond necklaces and a ring, the Sky Blue Diamond, due to be auctioned next month. The necklaces have a combined estimated value of around $10 million dollars (‎€9 million), while the ring is expected to reach $15-25 million (‎€13.5 - 22.6 million) The Worldwide Chairman of Sotheby’s International Jewellery Division, David Bennett said it was “very, very difficult“ to estimate the true value of the pieces as bidd