Antique Silver, Gold, Turquoise and Diamond Bow Brooch. Photo: Courtesy Doyle New York The stylized double bow centering two diamond-set ribbons, flanked by two ribbons set throughout with 24 oval and round cabochon turquoises, suspending one pear-shaped...

Long Antique Silver, Gold, Turquoise and Diamond Snake Necklace. Photo: Courtesy Doyle New York Composed of graduated articulated silver links continuously set with three rows of collet-set round cabochon turquoise approximately 8.0 to 2.4 mm., backed...