Oppenheimer Blue - $57.5 million
This blue diamond shocked audiences when it fetched $57.5 million at a Christie's auction in May 2016. At the time, this 14.62 emerald-cut stone that once belonged to Sir Philip Oppenheimer was the most expensive jewel ever sold at auction.
Blue Moon Of Josephine - $48.4 million
In 2015, Hong Kong billionaire and collector Joseph Lau purchased this diamond ring at auction for $48.4 million, renaming it the Blue Moon of Josephine after his 7-year-old daughter Josephine.
Graff Pink - $46.2 million
In 2010, this 24.78-carat, fancy intense pink diamond broke records upon its sale at auction for $46.2 to jeweler Laurence Graff.
Hutton-Mdivani Jadeite Necklace - $27. 4 million
This Cartier necklace, made up of emerald green jadeite beads and secured with a ruby, diamond, platinum, and gold clasp, sold at auction in 2014 for $27.4 million to the Cartier Collection.
Chopard 201-Carat Watch - $25 million
This dazzling Chopard watch contains a whopping 874 diamonds in all. The three largest diamonds, all heart-shaped and ranging in color from pink to blue to white, swivel apart to reveal the watch face underneath.