A 53.04 carat D color, internally flawless diamond is expected to fetch up to $5m when it is sold a Sotheby’s New York.
The Type IIa pear-shaped lose stone will lead the Magnificent Jewels sale on 7 June.
A GIA report from last November describes the diamond as having very good polish, good symmetry and no fluorescence.
The diamond, which carries an estimate of $3m to $5m, will be among the first items sold under Sotheby’s new price structure (introduced on 20 May) under which buyers pay a reduced premium – down by 26m per cent on their purchases.
Another highlight of the auction, also with a $3m to $5m estimate, is a David Morris necklace of Kashmir sapphires 2.40 cts to 11.37 cts and graduated oval-shaped diamonds.
Source: IDEX