![]() | Christie’s spring sale of magnificent jewels will offer a variety of diamonds and gemstones, along with important signed pieces by Bulgari, Cartier, Harry Winston, Tiffany & Co., and Van Cleef & Arpels. Highlight of the sale is a rare twin-stone fancy vivid blue diamond ring. The ring, with stones weighing 3.06 carats and 2.61 carats, is expected to sell for between US$6m and $8m. The sale also features three other D color diamonds of over 15 carats, including a Marquise-cut diamond ring weighing 16.69 carats. | ![]() 13 carat Fancy Yellow, VVS2 |