22 mars 2018
Unknown historic blue diamond emerges onto the market for the first time in 300 years
Property of a Princely Family. The Farnese Blue – a historic 6.16-carat pear-shaped fancy dark grey-blue diamond. Estimate: CHF 3.5 - 5 million (US$ 3.7 - 5.3 million). Courtesy Sotheby’s. GENEVA .- One of the foremost historic diamonds – The Farnese...