Edwardian Platinum, Natural Pearl and Diamond Pendant. Photo: Courtesy Doyle New York Centering one light gray natural pearl approximately 12.72 x 11.30 mm. within a drop-shaped frame set with old European and rose-cut diamonds, circa 1910. With GIA report...

Opal and Diamond Brooch. Photo: Courtesy Doyle New York White gold, one oval opal ap. 34.00 cts., 75 diamonds ap. 7.25 cts., ap. 13 dwt. Estimate $4,000-6,000 Pair of Blackened Silver, White Gold, Diamond and Opal Pendant-Earrings. Photo: Courtesy Doyle...

An Edwardian diamond, pearl and ruby brooch Designed as an old-cut diamond foliate scroll with circular-cut diamond surmount weighing 3.09 carats to the oval-shaped ruby and pearl drop detail, pearl untested, circa 1910, 5.0 cm high. Estimate £12,000...