A LILAC CHALCEDONY AND DIAMOND RING set with an oval cabochon lilac chalcedony in a border of round

An opal and diamond cluster ring claw-set with an oval cabochon opal in a border of round-cut diamonds, to a plain band, stamped 18ct(Ring size: K)

An opal and diamond cluster ring claw-set with an oval cabochon opal, in a border of old round-cut diamonds, unmarked(Ring size: U)

An opal and diamond cluster ring claw-set with an oval opal cabochon, in a single border of ten round brilliant-cut diamonds, indistinctly marked(Ring size: Q/R)

A VINTAGE CORAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon coral within concentric borders of round cut diamonds and pear shaped cabochon coral, stamped 18K, size M / 6.5, 15.5g.

A MOONSTONE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cabochon moonstone within a border of round brilliant cut diamonds, full British hallmarks, size M / 6, 3.8g.

NO RESERVE - AN EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cabochon emerald of 3.31 carats, within a border of round brilliant and baguette cut diamonds, with further round brillian

A TANZANITE, RUBY AND DIAMOND RING in 18ct white gold, set with an oval cabochon tanzanite of 20.78 carats, within a border of round cut diamonds, accented by round cut rubies to the shoulders, stampe

A VINTAGE TURQUOISE, SAPPHIRE AND DIAMOND RING, BEN ROSENFELD 1972 in 18ct yellow gold, set with an oval turquoise cabochon of 7.35 carats, encircled by a border of round cut diamonds totalling 2.0-2.

Oval Cabochon Blue Chalcedony, Cabochon Sapphire, Approx. 1.0 Carat TW Pave Set Diamond and 18 Karat White Gold Ring, Diamonds F-G color, VS1-VS2 clarity. Stamped 18K. Ring size 6-3/4. Approx. weight:

Chalcedony, diamond, 14k yellow gold ring Featuring (1) oval green chalcedony cabochon, measuring 17 X 13 mm, accented by (8) full-cut diamonds, weighing a total of approximately 0.05 ct., set in a 14

Ladies 14kt white gold diamond and chalcedony necklace featuring an oval cabochon cut green chalcedony weighing approx. 13.08ct, surrounded by a halo pf prong set round brilliant cut diamonds weighing

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

Blue chalcedony, diamond, and gold ring Cabochon blue chalcedony, round brilliant-cut diamonds 14k yellow and white gold Ring size 7 ¾; Gross weight 6.3 dwts

A TURQUOISE AND DIAMOND CLUSTER RING set with a domed cabochon turquoise in a border of round brilliant cut diamonds, the shank accented with further diamonds, the diamonds all totalling 1.2-1.4 carat

An opal and diamond pendant claw-set with an oval cabochon opal, in a border of round brilliant-cut diamonds, stamped 750, to a trace link chain(Length: 1.5cm)

YELLOW SAPPHIRE AND DIAMOND RING set with five oval cut yellow sapphires in a border of round cut diamonds, stamped 375, size M / 6, 2.3g.

A 9ct gold dyed chalcedony ring. The oval dyed chalcedony cabochon, within a textured border. Hallmarks for Birmingham, 1979. Ring size Q. Weight 6.3gms. Overall condition good. Minor surface scratche

AN AMETHYST AND DIAMOND COCKTAIL RING in platinum, set with a cabochon amethyst in a border of round brilliant cut diamonds, the diamonds all totalling 1.0-1.1 carats, no assay marks, size J / 5, 15.9

A sterling silver David Yurman pinky ring with 18K yellow gold accents, in Thoroughbred design, with one 10mm round, cabochon chalcedony stone and approximately thirty-six round white diamonds, size 4

AN OPAL AND DIAMOND RING in yellow gold, set with an oval cabochon opal doublet within a border of single cut diamonds, no assay marks, size Q / 8, 5.3g.

An aquamarine, sapphire and diamond cluster ring claw-set with an oval-cut aquamarine, in a border of round brilliant-cut diamonds, each shoulder set with a heart-shaped sapphire, to a plain band, sta

14K OPAL & DIAMOND RING set with an oval cabochon cut opal approx. 9.2x7.3mm, surrounded by 16 round brilliant cut diamonds approx. 0.34 carats (According to Estate Appraisal: G-H color, SI2 clarity),

A single opal and diamond earring claw-set with an oval opal cabochon, in a border of graduated round brilliant-cut diamonds, to a post and butterfly fitting, stamped 18ct (Length: 2cm)

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of 2.81 carats, in a border of round and baguette cut diamonds, the shoulders accented by further diamonds, no assay marks, size N / 6.5, 4.7g