Sotheby’s set a new world record for a jewellery auction after its Magnificent Jewels and Noble Jewels sale in Geneva realised US$175,097,419 on May 17, surpassing the US$160.9 million achieved in 2015. The auction’s star performer was the “Unique Pink,” an extremely rare fancy vivid pink diamond weighing 15.38 carats that sold for US$31,561,200 or a … Read More →