A BLACK OPAL AND DIAMOND PENDANT NECKLACE/BROOCH Suspending a pendant/brooch, set with a shield-shaped black opal, within a marquise and brilliant-cut diamond surround, to the length adjustable fine neckchain, mounted in platinum, pendant/brooch 3.4 cm long, neckchain 51.5 cm long BestOpalRings.com
Remarkable Australian Boulder Opals are paired with a dazzling purple sapphire and white diamonds in this amazing pendant by Norah Pierson. The 23kt baht chain is included. Approximate size of pendant: 2.5"L x 1"W Chain is 16 inches, 30.2 grams of 23kt gold
An Edwardian opal and diamond brooch. An Edwardian opal and diamond brooch, the oval cabochon-cut opal measuring approximately 14.3 x 11mm, yellow gold claw-set to the centre of an old-cut diamond cluster surround, all within a border of old-cut diamond sprays forming a quatrefoil design, all diamonds millegrain-set in silver to a yellow gold mount, with detachable brooch fitting and diamond-set pendant loop, gross weight 8.7 grams, circa 1900. Via Bentley & Skinner.
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.
Opal, Diamond, White Gold Pendant The pendant features a pear-shaped cabochon black opal measuring 39.00 x 24.00 mm and weighing approximately 27.00 carats, framed by full-cut diamonds weighing a total of approximately 0.40 carat, set in 14k white gold.
AN EDWARDIAN BLACK OPAL AND DIAMOND BROOCH/PENDANT The cushion shaped black opal panel within a millegrain-set brilliant-cut diamond border, to the similarly-set pendant loop and trace-link chain, circa 1910, pendant 3.8cm long, original fitted case, pendant loop and brooch fitting detachable