An Edwardian Platinum Topped Gold, Natural Blue Spinel and Diamond Pendant/Brooch, containing one cushion cut greenish blue spinel in a multi claw prong setting within an interwoven foliate motif openwork surround and hinged drop containing numerous old European and old single cut diamonds together with a drop shape baroque pearl (origin not tested), gold brooch fittings, suspension hooks allow wear as pendant.
This amazing gemmy black opal must be seen to be believed! The mesmerizing, elongated oval, black opal and diamond ring is ablaze with the rare and coveted prominent colors of fiery red and orange, with secondary flashes of blue and green. The iridescence is so strong that the opal drastically changes colors from every different angle! This gorgeous gem is beautifully presented in a platinum and diamond Edwardian style ring dating back at least a few decades.
*A Victorian opal and diamond cluster pendant by West & Son, Dublin, c.1870. The central round white opal cabochon of estimated weight 2.60 carats in a stepped surround of old brilliant cut diamonds of estimated total weight 5.40 carats. Detachable brooch, pendant and hair piece fittings in original box. Yellow gold and silver.
A BLACK OPAL, ALEXANDRITE AND DIAMOND PENDENT NECKLACE/BROOCH, BY MITSUO KAJI Horizontally-set with a detachable black opal pendant weighing 19.14 carats, within a pierced pavé-set diamond and circular-cut alexandrite surround, flanked by tapered baguette and trapeze-cut diamonds, to the pierced diamond-set leaves and briolette-diamond terminals, joined to the four-row neckchain, mounted in platinum (may also be worn as a brooch), 49.0 cm long
PLATINUM, BLACK OPAL, DIAMOND AND TOURMALINE NECKLACE Suspending a pendant centering an oval-shaped black opal weighing 12.34 carats, framed by 13 tourmalines weighing approximately 1.50 carats, the pendant and chain further set with round diamonds weighing approximately 1.25 carats, length 17¾ inches.
Platinum, Opal, Sapphire, and Diamond Pendant, bezel-set with an opal measuring approx. 18.00 x 15.00 x 4.50 mm, framed by old European- and single-cut diamonds, fancy-cut sapphire accents, millegrain details. At Skinner.
A graceful scroll motif opal and diamond bracelet from the early Victorian period with a prescient Art Nouveau feel. The central plaque feature three glowing white opals and four sparkling old mine-cut diamonds. A truly lovely and graceful antique bracelet, circa 1850. This bracelet has a double box catch with a snake safety chain and measures about 6 3/4 inches long by 3/4 inch wide.