The extremely rare, 10-carat Mediterranean Blue diamond could fetch a whopping $20 million at Sotheby's High Jewelry auction ...
Sotheby’s will auction The Mediterranean Blue 10.3 carat stone this ... the diamond will travel to Taipei, Hong Kong, and New York before its final exhibition and sale in Switzerland.
Mediterranean Blue, a 10.03-carat blue diamond, will be revealed to the public for the first time at Abu Dhabi’s Bassam ...