The Jonker No. 5 diamond and an emerald and diamond ‘Palmette’ necklace are among the exceptional items that auctioneer Christie’s in Hong Kong will be offering at its Spring auction on May 30.
The Jonker No. 5 diamond forms a key part of a legendary collection of diamonds from the world famous 726-carat Jonker rough stone, discovered by Jacob Jonker, Christie’s said in a statement.
When found in January 1934, it was the fourth-largest gem quality diamond ever uncovered. The stone was subsequently purchased by the Diamond Corporation Ltd., a company owned by Sir Ernest Oppenheimer. In 1935, it was purchased by Harry Winston and was displayed during the Silver Jubilee Celebrations of the Coronation of King George V and Queen Mary.