An 18ct gold and platinum diamond band ring.

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 single-stone ring. The brilliant-cut diamond collet, to the tapered shoulders and plain band. Estimated diamond weight 0.45ct, J-K colour, P1. Weight

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 SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, the circular face set with pattern of step cut sapphires and round cut diamonds, further diamonds accenting the band, stamped 18ct PLAT, s

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, the circular face set with step cut sapphires and round cut diamonds, further diamonds accenting the band, stamped 18ct PLAT, size N / 7,

A mid 20th century sapphire and diamond cluster ring. The rectangular-shape sapphire, within an old-cut diamond surround, to the grooved shoulders and plain band. Estimated total diamond weight 0.35ct

This is a beautiful wide band ring, it is crafted from 18k white gold with a polished finish. It is half inch wide with a dome shape and has 8 flowers set around the polished band, each flower has rou

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 cluster ring. The single-cut diamond floral cluster, with single-cut diamond sides, to the plain band. Estimated total diamond weight 0.15ct. Weight 2

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 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

A SOLITAIRE DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond of 0.51 carats within a tapering band, stamped 18ct Plat, size K / 5.25, 2.4g.

A DIAMOND RING in platinum and 18ct yellow gold, set with a cluster of round brilliant cut diamonds set on a texturised gold band, stamped PLAT, full British hallmarks for 18ct gold, size J / 4, 6.3g.

A DIAMOND TOI ET MOI RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, the stylised band terminated at either end with an old cut diamond, with further diamonds to the shoulders, no assay mar

AN ANTIQUE DIAMOND TOI ET MOI RING in 18ct yellow gold and platinum, the stylised band set with two old mine brilliant cut diamonds, no assay marks, size M / 6.25, 2.0g.

A DIAMOND DRESS RING, CIRCA 1930 in 18ct yellow gold and platinum, the stylised band set with five graduated single cut diamonds, stamped 18ct Plat, size P / 7.75, 2.5g.

METAL: 22K gold, platinum. GEMSTONES: diamonds-approx. 0.30ctw. MEASUREMENTS: ring size 6.25. Band is 8.5mm wide. MARKED: 22K C W 900PT. WEIGHT: 9.1 grams. Gemstones have not been graded for color and

ROBERTO COIN - an 18ct gold diamond band ring. The pave-set brilliant-cut diamond panel, with plain band. Signed R Coin. Estimated total diamond weight 2.95ct. Hallmark for Birmingham, 2010. Ring size

A gentleman's 18ct gold diamond band ring. The brilliant-cut diamond, inset to the plain band with grooved edges. Diamond weight 0.40ct, stamped to band, estimated H-I colour, P1 clarity. Hallmarks fo

METAL: 18k Gold/ Platinum. MEASUREMENTS: Ring size 4, ring is 10.5mm wide. GEMSTONES: Diamonds approx. 0.46ctw. TESTED: 18k/ Plat. WEIGHT: 8.8 grams.Gemstones have not been graded for color and clarit

METAL: 18k Gold, Platinum. GEMSTONES: Diamond approx. 0.15ct. MEASUREMENTS: Ring size 5, ring band is 1.5mm wide. MARKED: Tiffany & Co 18k PT950. WEIGHT: 2 grams. Comes with pouch.Gemstones have n