Sancy Diamond: Little is known of the Sancy Diamond before the 14th century when it was most likely stolen from India. It was first recorded as measuring 100 carats when it was part of the dowry of Valentina, Galeazzo di Visconti's daughter in 1389.
Ethiopian Opal and Diamond Rondell Necklace. Twenty-nine rare and large opal beads totaling an extraordinary 554 carats comprise this mesmerizing necklace. The graduated gems are an impressive size, measuring from 13mm to 23.8mm, with each exhibiting a high level of translucence and a rainbow of colors. USD$228,500.
AQUAMARINE AND DIAMOND DRESS RING. Centring on an oval aquamarine stated to weigh 20.08 carats, encased within a border of brilliant-cut diamonds, to similarly set split shoulders, size K, British hallmarks for London, 2007.