A BLACK OPAL BANGLE the open cuff bangle set with two oval cabochon black opals, stamped 18K, inner

A BLACK OPAL TRIPLET BANGLE in 18ct yellow gold, the hinged bangle set with a black opal triplet, stamped 750, inner circumference 17.0cm, 42.1g.

METAL: 14K yellow gold GEMSTONE(S): round and oval cabochon opals MEASUREMENTS: brooch 1-1/2 x 1-1/2 inches; bangle 6-1/4 inches inner circumference, 3/8 wide WEIGHT: 32.20 g.Stamped: 14K

Victorian Diamond, opal, and enamel bangle bracelet Of blue and black enamel foliate scroll design, set with a cabochon opal and old mine, rose, and round brilliant-cut diamonds Yellow gold Inner circ

18KYG Black Opal and Diamond Ring size 11, bezel set oval cabochon black opal doublet approx. 13.0mm x 8.5mm, 10 prong set mixed sized round brilliant cut diamonds approx. .30cttw., stamped and tested

A BLACK OPAL AND DIAMOND PENDANT in 18ct yellow gold, set with a cabochon black opal of 3.40 carats, the bail accented by three round cut diamonds, stamped 18K, 2.2cm, 1.4g.

TRIANON, A WOOD, TURQUOISE AND PEARL BANGLE the open cuff bangle set with a row of gold studs accented by two rows of pearls and round cabochon turquoise, no assay marks, inner circumference 17.2cm, 4

Vintage Oval Cabochon Opal and 14 Karat Yellow Gold Cuff Bangle Bracelet. Stamped 14K. Measures 1/2" W, 2" interior diameter. Approx. weight: 13.0 grams. Condition: Back is bent, dings and surface wea

Fourteen-Karat Yellow Gold, Black Opal and Diamond Pendant, in a modern design and bezel-set with an oval cabochon black opal, with an approximate weight of 5.75 carats, and two round brilliant-cut di

YELLOW GOLD AND OPAL SET Consisting of a brooch containing one cushion cabochon black opal measuring approximately 22.60 x 19.15 mm, together with a pair of earclips containing two oval cabochon opals

Early 20th century. Edwardian hinged bangle bracelet, stamped 15K, squared profile with a flat top and sides, featuring prong set oval cabochon opal measuring approx. 15.1 x 11.2 x 4.2mm. Simple gold

This is a 1970's 18k yellow gold and black Australian opal ring with a total of 6.60Cts.  The ring is centrally set with an oval cabochon cut opal that measures 17.80mm x 13.00mm x 4.99mm.  The opal

OPAL AND DIAMOND BANGLE AND RING, CIRCA 1900 Each set with a graduated row of oval cabochon opals, accented by single-cut diamonds, ring size approx. L½, bangle inner circumference 17.0cm, bangle

Two pair of opal earrings, together with an opal and diamond ring. The largest earring pair composed of 18K yellow gold set with oval black opals of approximately .70 carats each. Overall earring meas

Marina B 'Novia' opal, sapphire, and black onyx earrings Each set with cushion and oval opals, enhanced by cabochon black onyx, and pave-set circular-cut sapphires 18k yellow gold Signed Marina B, num

Two pairs of cuff links, one pair is silver marked "925" with geometric black stone and opal inlay, one pair is 18k gold marked "750" with red and black stone inlay Provenance: Proper

DESCRIPTION: A vintage 18k Yellow gold ring features in a brutalist design, fitted along the center with two Oval cut Emerald Stones and a center Opal Cabochon. Stamped along the inner band "18". Tota

This is a 1970's Victorian Revival Australian opal and diamond bangle bracelet. The bracelet features an open frame navette shaped knotted bow design centrally set with 5 graduating oval cabochon cut

METAL: 18K gold GEMSTONE(S): black jade inlay, set in a checkerboard pattern MEASUREMENTS: inner circumference 6-3/4 inches, width 3/4 inch WEIGHT: 57.50 g. Signed: ANGELA CUMMINGS; Stamped: 750, 18K

OPAL AND FOURTEEN KARAT GOLD BANGLE BRACELETThe oval, hinged 14k yellow gold bangle with two white pearl accents along with ten opal cabochons set around a larger oval shaped opal cabochon with an est

A group of fourteen karat gold ringsincluding two signet rings set with a carnelian tablet or a black chalcedony cameo depicting classic figure; a floriform oval or round cabochon opal cluster ring. 1

13.26 Carat Oval Cabochon Black Opal, 2.26 Carat TW Eighteen Round Brilliant Cut Diamond and Platinum Ring. Opal with very good play of multi color. Diamonds E-F color, VVS-VS clarity. Stamped Pt900.

Crafted in platinum and 18K gold; set with a trapezoid cabochon-cut black opal, measuring approximately 12.40 x 9.30 x 4.65 mm; lozenge-shaped sapphire, weighing approximately 2.60 carats; accented by

AN OPAL AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an oval cabochon opal between two round brilliant cut diamonds, stamped 750, size K1/2 / 5.5, 4.7g.

Tiffany & Co. 18k gold wide weave bangle bracelet inlaid with opal & black jade (attributed to Angela Cummings) 87.3 grams; 1 1/8" at widest; 6 1/2" interior circumference