The pink diamond ring outshines most ... A massive 280.8-carat Colombian emerald, dubbed “The Amazon Queen,” is expected to hammer down for $1.5 million to $2.6 million. And an extremely ...

Chrsitie’s said the diamond exhibits a pure pink hue, unlike many natural ... The was followed by a platinum ring centered with a 2.28-carat fancy vivid blue heart-shaped modified brilliant ...

And headlining the bunch is an impressive 6.2-carat Fancy Vivid Pink diamond ring, expected to sell for $10.5 million to $15 million, according to Phillips’s pre-sale estimates. More from Robb ...