A pair of art deco black opal and diamond pendent earrings, circa 1925 Each claw mounted drop-shaped black opal, suspended from an articulated surmount composed of collet mounted old brilliant-cut diamonds spaced by two millegrain-set single-cut diamond sections, length 4.4cm., cased by Hardy Bros. Ltd., Australia
This 25mm black opal donut is one of only two in existence. It is perfectly polished and weighs just over 3 grams. The opal is 25mm across and the band is 5.9mm thick. The opal was cut from the very finest material and the intensity of the fire stands on its own. Gilson Created Opal Black 25mm donut shaped opals
Part of a suite that includes earrings, a bangle and a ring, Alessio Boschi Plumes necklace takes the peacock tail as its inspiration and uses 15 black opals as the centerpieces of cascading and movable feathers.