Sotheby’s will offer the historic Farmese Blue diamonds at its Geneva sales in May.
The pear shape of 6.16-carat fancy dark grey-blue diamond, originally given to Queen Elisabeth Farmese of Spain as a wedding gift following her marriage to King Philip V in 1714, has spent 300 years in the private collection of Europe’s royal families. The diamond will go under the hammer at the Magnificent Jewels and Noble…
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