30 novembre 2015
Jewellery from celebrated designers along with gems from a European Princess for auctions at Bonhams
A 2.97 carats fancy grayish blue diamond ring, by Andrew Grima, 1971. Estimate £500,000 - 700,000 (€710,000 - 1 million). Photo: Bonhams. LONDON - Leading the sale is a fancy greyish-blue, 2.97cts step-cut diamond ring by the society jeweller to the royals...