18 juillet 2010
Amethyst @ Sotheby's. Jewels. 15 Jul 10. London
Gold and amethyst demi-parure, circa 1820. photo Sotheby's Est. 7,000—10,000 GBP. Lot Sold 15,625 GBP Amethyst, pearl and diamond pendant, 19th century. photo Sotheby's Est. 7,000—10,000 GBP Lot Sold 9,375 GBP Amethyst and diamond combination jewel and...