London , UK. 11 October 2016. A model shows a rare fancy vivid blue diamond ring by Cartier at Sotheby's in New Bond Street. Weighing carats, the stone has been named "The Sky Blue Diamond" and will be offered at Sotheby's sale of Magnificent and Noble Jewels, taking place in Geneva on 16 November, with a pre-sale estimate of USD$15-25m. Credit: Stephen Chung / Alamy Live News

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Size: 3700px × 3700px
Photo credit: © Stephen Chung / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: beautiful, blue, cartier, diamond, expensive, jewel, jewellery, london, preview, russian, sky, sotheby, sothebys