Christie's has auctioned one of the rarest blue diamonds in the world for a staggering $44 million
A 4.83 carat fancy vivid blue diamond ring sold for $8.8m at Christie's Hong Kong
11.16-carat fancy vivid blue diamond named the “Bulgari Laguna Blu”
A blue diamond ring is among the top lots at the Sotheby’s Magnificent Jewels sale in New[…]

Two hearts, one blue, the other pink, will appear at Sotheby’s Hong Kong Magnificent Jewels auction as[…]