An 18 Carat White Gold Ring set with a Black Opal. Stamped 750, Size P, weight 5.1g

An 18 Carat Gold and Three Stone Opal Ring set with Diamonds... Stamped 18CT, Size N, weight 4.3g

18 carat white gold Cartier ring of slightly shield form, the interior stamped "Cartier 750 DK 4580 54" with additional hallmarks, Cartier size 54, gross weight ~ 13.2 grams

Large Contemporary 40.23 Carat Oval Cut Prasiolite, 4.98 Carat Morganite, Diamond and 18 Karat White Gold Ring. Prasiolite measures 27.5 x 20.5mm. Stamped 750. Ring size 6-1/2. Approx. weight: 30.6 gr

A BLUE TOPAZ COCKTAIL RING in 18ct white gold, set with a heart shaped brilliant cut blue topaz of 30.46 carats, stamped 750, size P / 7.5, 11.3g.

2.10 Carat Emerald Cut Diamond and 18 Karat White Gold Engagement Ring with Micro Pave Diamond Accents. Diamond K-L color, VS1 clarity. Stamped 750. Ring size 6-1/2. Approx. weight: 4.6 grams. Domesti

Set with 15 round-cut diamonds, weighing a total of approximately 0.75 carats, mounted in 18K yellow and white gold; ring size 6-1/2; weight 11g. Stamped 18K 750. Property of a Philadelphia Gentleman.

Man's Approx. 3.30 Carat Invisible Set Diamond and 18 Karat White Gold Ring. Stamped 18K. Good condition. Ring size 10. Approx. weight: 25.5 grams. Shipping $28.00 (estimate $1500-$1800)

set with 64 black round diamonds approx. 0.64 carat, overall ring head 16x23mm, in white gold, stamped 750, and with illegible Italian hallmark, etched to the exterior 'Enrico Dani', size 7, 18.1gms.,

Onyx and garnets ringIn yellow gold 18 Karat set with three colours (black, red and white) of stones set in alternation.Hallmark : 750 and master's mark.Size of finger : 51 ( US:5 3/4 ) Weight : 3,7 g

Cartier 18 Karat White Gold Love Ring. Signed, stamped 750. Ring size 55 (US 7-1/4). Approx. weight: 6.47 grams. With boxes. Condition: Very good vintage conditoon. Light surace wear from normal use.

Italian Modern Design Round Brilliant Cut Diamond, Yellow Sapphire and 18 Karat Yellow and White Gold Flexible Mesh Link Ring. Signed SR, stamped 18K 750. Ring size: variable. Approx. weight: 8.51 gra

Vintage Gemstone and 18 Karat Yellow Gold Ring. Set with small round cut diamonds, rubies and sapphires. Stamped 750. Ring size 7-1/2. Approx. weight: 11.60 grams. Estimate: $500.00 - $700.00 Domestic

Vancox Approx. .75 Carat Diamond and 18 Karat Yellow Gold Ring. Stamped 750, Vancox. Good condition. Ring size 7. Approx. weight: 13.84 grams. Shipping $28.00 (estimate $200-$250)

A DIAMOND DRESS RING in 18ct white gold, set with a cluster of step cut and round cut diamonds, with further diamonds to the band, stamped 750, size P / 8, 3.8g.

An 18 carat gold ruby and diamond ring, set with alternating square shaped rubies and brilliant cut diamonds, stamped 750 with full Sheffield hallmarks, finger size K

Featuring two rows of brilliant-cut diamonds, weighing approximately 2.60 carats, mounted in 18K white gold; ring size 5; weight 3.6g. Stamped 750.

BVLGARI style 18K white gold cobra snake ring set with 2.2ctw diamonds (Clarity:VS1;Color:F) and faceted emerald eye accents. Ring size 8. Stamped 750. Approx. weight 10.9 grams.

Manner of Van Cleef & Arpels, 18 Karat Yellow Gold Perlee Clover ring set with twenty-eight brilliant cut diamonds. Stamped VCA 750. Ring size 6 1/2. Approx. weight: 15.0 grams.

18K yellow and white gold ring set with a large 12.7mm rose cut citrine surrounded by round cut diamond accents. Ring size 6.5. Stamped 750. Approx. weight 9.1 grams.

14K WHITE GOLD RING WITH BLACK DIAMOND 1.8 CARATS: 14k White gold ring mounted with a large, circular black diamond, 1.8 carats accented by a white accent diamond to each side, size 7, stamped 4k, wei

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

Approx.. 5.46 Carat TW Diamond and 18 Karat White Gold Engagement Ring set in the Center with an Approx. 4.36 Carat Round Brilliant Cut Diamond I Color, I1 Clarity. Stamped 18K 750. Very good conditio

A SAPPHIRE AND DIAMOND RING, in 18 carat yellow gold, set with a central oval cut sapphire framed by round cut diamonds with further square cut sapphires to the shank, stamped 750, size O / 7, 3.7g.

OPAL & DIAMOND RING set with an oval opal approx. 9x7mm, accented with a surround of 12 round diamonds approx. 0.48 carats, white gold setting stamped 14K, size 6.5, 4.1gms.