18ct gold and platinum diamond three stone ring, the central diamond approximately 2.6mm in

A RUBY AND DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with an oval cut ruby of 1.28 carats between two old cut diamonds, the diamonds both totalling approximately 0.50 carats, stam

An 18ct gold and platinum diamond three-stone ring. The graduated brilliant-cut diamond line, with bi-colour gallery and band. Estimated total diamond weight 0.30ct. Ring size K. Weight 1.6gms.

A mid 20th century 18ct gold and platinum diamond three-stone ring. The graduated brilliant-cut diamonds, each within an illusion setting, to the tapered shoulders and plain band. Estimated total diam

Two mid 20th century 18ct gold and platinum diamond three-stone rings. Each designed as three brilliant-cut diamonds, to the plain band. Estimated total diamond weight 0.45ct. Weight 5gms. Overall con

A GOOD LARGE ANTIQUE 18CT YELLOW GOLD AND DIAMOND THREE STONE RING. Central stone 0.7 mm x 0.7 mm.

18ct Gold and platinum three stone diamond ring

18ct Gold and platinum three stone diamond ring

18ct Yellow gold and platinum three stone diamond ring with colette setting

An 18ct gold and five platinum three stone diamond ring, mid 20th century, size N.

A mid 20th century platinum and 18ct gold diamond three-stone ring. The graduated brilliant-cut diamond line, to the single-cut diamond asymmetric sides and plain band. Estimated total diamond weight

A mid 20th century platinum and 18ct gold diamond three-stone ring. The slightly graduated circular-cut diamonds, to the tapered band. Estimated total diamond weight 0.35ct, I-J colour, SI clarity. Ri

A DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with three round brilliant cut diamonds totalling 0.9-1.0 carats, stamped 18CT PLATINUM, size N1/2 / 7, 3.9g.

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with a square step cut blue sapphire between two round cut diamonds, stamped Plat 18ct, size N / 6.5, 2.1g.

A 14k white gold diamond dress ring, set with three round brilliant cut diamonds, central diamond approximately 0.15ct, marked 14k. size 6.

NO RESERVE - A DIAMOND THREE STONE RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with a trio of graduated old cut diamonds within a stylised band, stamped 18ct, size M / 6.25, 2.9g.

NO RESERVE - A DIAMOND THREE STONE RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with a trio of graduated old cut diamonds within a stylised band, stamped 18ct, size M / 6.25, 2.9g.

A mid 20th century platinum and 18ct gold diamond and paste three-stone ring. The graduated brilliant-cut diamonds and replacement colourless paste, to the asymmetric sides and plain band. One replace

Five gold gem-set rings. To include an early 20th century platinum and 18ct gold single-cut diamond three-stone crossover ring, an early 20th century 18ct gold and platinum synthetic ruby dress ring,

A 14K gold diamond set three stone ring The central stone approximately 1.5 carats, the shoulders also diamond set.

A 14k and 18k yellow and white gold ring set with a central round brilliant cut diamond, approximately 0.45ct, flanked by two round brilliant cut diamonds, marked 14K & 18k, size 61/4.

A DIAMOND THREE-STONE RING The central old-cut diamond within a six-claw setting and between two old cushion-cut diamonds, mounted in 18K gold, principal diamond approximately 1.00ct, remaining diamon

A ladies platinum three stone ring with a central diamond flanked by oval sapphires. Dimensions: Size 9, the approximate gross weight is 4.0 dwt. The diamond is approximately 1.00 ct (estimated weight

A THREE STONE DIAMOND RING in 18ct yellow gold, set with three emerald cut diamonds, the diamonds all totalling approximately 1.00 carat, full British hallmarks for London 2001, size M / 6.25, 2.6g.

NO RESERVE - A DIAMOND THREE STONE RING in 18ct yellow gold, set with three round brilliant cut diamonds with a combined total weight of approximately 1.30 carats, British hallmarks for 18ct gold, siz