10. Diamond Riviere ($8.14 million)
This Diamond Riviere was auctioned at Christie’s Hong Kong Magnificent Jewels Auction in November 2013. It was sold to anonymous buyer for $8,144,994.
The necklace comprises 52 brilliant-cut diamonds lining on a 39.8-cm platinum chain. And the total weight of this necklace is 104.84 carats. They consist of 7.14, 4.52, 3.16, 3.09, and 3.02 carats diamonds.
All diamonds used in this necklace are type IIa. This type is the most chemically pure type of diamond and often has exceptional optical transparency.
These brilliant-cut diamonds weigh from 1.07 to 7.14 carats and have D color. And they also have internally flawless clarity, with excellent cut, polish, and symmetry.
