A VINTAGE ONYX AND DIAMOND RING in 18ct white gold, set with a pyramid-shaped onyx accented by

POMELLATO, A ONYX AND DIAMOND CAPRI RING in 18ct white gold, set with a faceted onyx, accented by round brilliant cut diamonds to the band, signed Pomellato, stamped 750, size M / 6, 6.6g.

Vintage, handmade designer ring set with diamonds and black onyx inlay. Top of the ring has (1) marquise shaped natural diamond, set east to west. Approx. weight 1.20ct (by measurement formula), Clari

AN OPAL AND DIAMOND DRESS RING in 18ct white gold, set with a pear shaped cabochon opal within a twisted mount, accented by round cut diamonds, stamped 18kt, size Q / 8, 8.6g.

Vintage 14kt Black Onyx Diamond Ring, Sz 5.5., Filigree White gold with a bezel-set flush mounted onyx that is appx. 17mm by 12mm and set in the center is a 1.5mm diamond set with six prongs in a six-

NO RESERVE - A VINTAGE AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, the tapering band set with an oval cut aquamarine accented by round cut diamonds within star designs, stamped 750, size N /

Vintage 10kt Onyx Diamond Ring, Men's, 2.5 point diamond, Initials EB in White Gold, Sz. 5, Signet/Pinky ring style. Appx. 4.95 gr. Rounded rectangular shape that has a bezel-set black onyx flat stone

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut aquamarine of 10.74 carats, accented by two pear shaped rose cut diamonds, within borders of round cut diamonds, stamped

White gold mount set with a round onyx which is surrounded by full cut round diamonds totaling approx. .50 ct.

A VINTAGE CORAL, ONYX AND DIAMOND RING in 14ct yellow gold, set with carved pieces of black onyx and angel skin coral, accented by rows of round cut diamonds, stamped 14K585, size M / 6.5, 20.1g.

Vintage 18KT white gold ring with (3) round diamonds set in black onyx. Onyx measures 21 x 10 MM. Ornate filigree mounting. Size 6.5, weighs 5.3 grams.

Vintage 14kt Carved Onyx Diamond Ring, Two-Tone Sz. 5. Pave-set diamonds angled across the top of the finger set in white gold. The rest of the ring is 14kt yellow gold. It has carved angled onyx piec

BUCCELLATLI, A VINTAGE DIAMOND BOMBE DRESS RING in 18ct yellow gold and white gold, the tapering band of openwork design, set with round brilliant cut diamonds within star shaped pierced motifs, signe

Beautiful vintage ring features a 14kt yellow gold setting. A genuine prong set Onyx stone is accented on each side with a genuine prong set diamond. The ring is a size 7. The weight of the ring is 3.

Vintage White Gold, Black Onyx, and Diamond Ringgeometric tablet inlaid with black onyx and with bead set diamond accents weighing approximately .45 total carat (H-I color, SI clarity), on tapering sh

A vintage, 10 karat white gold ring with heart shaped onyx and single diamond. Band is marked "BT-10K". Tested for purity. Ring size: 6. Total Weight: 1.87 grams.

A VINTAGE PINK SAPPHIRE AND DIAMOND BOMBE RING in the style of Buccellati, in 18ct white gold and yellow gold, the tapering band set with a cushion cut pink sapphire of 4.38 carats, accented by cluste

The lot consists of a 10K white gold lady's ring set with black onyx and a small diamond and a cameo bracelet & matching earrings, a pin set with a carnelian and cameo pin with a broken clasp. All in

A 14k yellow gold navette shaped dress ring, set with black onyx, and a small central diamond, marked 14k Birks.

Opal, Diamond and Onyx Ring 14k white gold, the ring mounted with a pear-shaped cabochon-cut opal weighing approximately 2.45 carats, accented by baguette- and round brilliant-cut diamonds weighing ap

Lady's Vintage Approx. 3.0 Carat Pave Set Round Cut Diamond, Onyx and 14 Karat White Gold Ring. Diamonds F-G color, VS1-VS2 clarity. Unsigned. Good condition. Ring size 5-1/2. Approx. weight: 8.75 pen

The lot features a 10k white gold onyx and diamond accent size 6.5 ring and a 10k rose gold 7.25 ring with a burgundy red smooth glass prong set cabochon solitaire. Total weight for both rings is 4.1g

A DIAMOND, ONYX AND EMERALD PANTHER PENDANT NECKLACE in 18ct white gold, designed as a panthers head, pave set with round brilliant cut diamonds accented by pear cut emeralds and polished onyx, suspen

Men's Diamond, Black Onyx, 10k Yellow Gold Ring. Featuring one transitional round-cut diamond weighing approximately 0.20 ct., accented by one triangular shaped black onyx tablet with a gold "B", set

Cartier Panthere de Cartier Pave Set Diamond, and 18 Karat White Gold Ring. Diamonds E-F color, VVS-VS clarity. Accented with emerald eyes and black onyx. Signed, stamped 750, numbered CRD097931, size