The most resplendent is the round brilliant. This cut is rarely practiced from large gems because the perfect shape is obtained at the expense of a loss of material. An oval with perfect facets can approach the quality of a round diamond. Some other elongated shapes such as pear or emerald also offer very satisfactory results.
In 2018 Sotheby's Diamonds privately sold a magnificent round diamond weighing 102.34 carats, extracted from a 425 carat rough stone mined by De Beers in Botswana. The price of the transaction was not disclosed.
On May 15, 2013, Christie's sold for CHF 26M including premium a 101.73 carat pear diamond obtained from a 236 carat gem unearthed at Jwaneng, a mine owned in partnership by De Beers and by the Government of Botswana.
On April 2 in Hong Kong, Sotheby's sells as lot 1801 an oval diamond of 88.22 carats. Please watch the video shared by the auction house.
The GIA report accompanying its certification includes a rare laudatory comment : "Though its GIA Grading Report reveals a thorough description of its characteristics, it cannot quite capture its splendor - one must see the gem to comprehend its magnificence."
This diamond comes from a 242 carat rough stone also mined in Jwaneng. Its lower estimate at HK $ 88M responds to its weight in carats by using the double 8 which is in China a homophony with an augur of joy and wealth. This amount corresponds to US $ 127K before fees per carat.
An oval diamond weighing 118.28 carats worked from a 299 carat rough stone discovered in 2011 in southern Africa was sold for HK $ 240M including premium by Sotheby's on October 7, 2013, corresponding to US $ 260K including premium per carat.
SOLD for HK$ 108M including premium