Lot 229. Important 178.64 carats emerald and diamond brooch-pendant. Estimate:  285,000 – 475,000 CHF. Lot sold 905,000 CHF. Courtesy Sotheby's 

Set to the centre with a hexagonal-shaped emerald carved with floral and foliate motifs in the Mughal style, weighing 178.64 carats and measuring approximately 50 x 10 x 40mm, drilled at either side for suspension, probably late 17th-18th century, to a modern frame of foliate design embellished with brilliant-cut and pear-shaped diamonds, pendent loop and pin fittings to reverse. 

Sotheby's. Magnificent Jewels and Noble Jewels. Genève | 14 mai 2013 - www.sothebys.com