The De Beers Millennium Jewel 4

10-carat stones are generally pricey, but they don't get this pricey very frequently. The De Beers Millennium series consisted of 12 diamonds designed to commemorate the year 2000. This particular diamond was the fourth in the set.

This magnificent diamond is the most costly jewel ever sold at auction in Asia, despite not being the most valuable gemstone ever sold. The previous record was set in late 2013 when a 118.28-carat D flawless diamond sold for $30.6 million.

Despite the fact that the buyer was unknown, one-story speculates that this diamond piqued the curiosity of Joseph Lau, a billionaire who bought a 16.08-carat diamond for his daughter in 2015. That $28.5 million diamond is incredible.

Price: $31.8 million

Year Sold: 2016

Number of Carats: 10.10

Interesting Fact: The most expensive jewel sold at auction in Asia