Lot 484 – 18 karat two-color gold, pink diamond, diamond and onyx double-clip brooch, Graff. Photo Sotheby's

The embracing koala bears set with numerous round pink diamonds weighing approximately 23.70 carats, the arms and ears accented by round near colorless diamonds weighing approximately 3.50 carats, with the eyes and noses set with onyx, gross weight approximately 39 dwts, signed Graff on the carrier; may be worn as two separate brooches. With signed box. Estimate:  $100,000 – $150,000

Sotheby's. Important Jewels. New York | 24 sept. 2013 - www.sothebys.com