A platinum diamond three-stone ring. The brilliant-cut

A platinum diamond three-stone ring. The brilliant-cut diamond line, to the openwork gallery and tapered band. Estimated total diamond weight 1.05cts, H-K colour, SI2-P1 clarity. Hallmarks for Birming

A platinum diamond three-stone ring. The brilliant-cut diamond, with similarly-cut diamond sides to the plain band. Estimated total diamond weight 1.20cts, J-L colour, SI clarity. Hallmarks for Birmin

A PLATINUM DIAMOND THREE STONE RING graduated round brilliant-cut diamonds in claw settings. Estimated total diamond weight 3.40ct, hallmarked Sheffield (indistinct), ring size O, 6.8 grams Good co

A mid 20th century platinum diamond three-stone ring. The graduated brilliant-cut diamond line, with single-cut diamond line sides, to the plain band. Estimated total diamond weight 0.55ct, I-J colour

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

A mid 20th century 9ct gold and platinum diamond three-stone ring. The graduated brilliant-cut diamonds, within a lozenge-shape surround, to the detailed shoulders and plain band. Estimated total diam

A GOOD LARGE ANTIQUE PLATINUM AND DIAMOND THREE STONE RING set with bright brilliant cut stones. Size Q/R.

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 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

Platinum three stone diamond ring, center round brilliant-cut diamond appx. 1.20 ct., SI / IJ. Two Old Mine Cut diamonds are set on each side, appx. 1.30 ct. total weight, SI / HI, size 6 3/4.

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

Art Deco style Approx. 2.67 Carat Round Brilliant Cut Diamond and Platinum Three Stone Ring accented with .88 Carat French Cut Sapphires. Diamonds E-F color, VS clarity. Sapphires with vivid saturatio

A DIAMOND THREE STONE RING in platinum, set with a central oval cut diamond of 0.85 carats between two round brilliant cut diamonds totalling 0.25 carats, British hallmark for platinum, size M1/2 / 6.

NO RESERVE - A RUBY AND DIAMOND THREE STONE RING, CIRCA 1950, Made in 18 carat white gold and platinum, Cushion cut ruby, weighing approximately 2.27 carats, Old European brilliant cut diamonds, appro

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 platinum graduated sapphire three-stone ring, with brilliant-cut diamond shared surround.Sapphire total weight 0.64ct.Total diamond weight 0.13ct.Hallmarks for London, 2011. Ring size M. 5.9gms.

AN AQUAMARINE AND DIAMOND THREE STONE RING in yellow gold and platinum, set with a cushion cut aquamarine between two round brilliant cut diamonds, obscured British hallmarks, size N / 6.5, 2.7g.

NO RESERVE - A PINK SAPPHIRE AND DIAMOND THREE STONE RING in yellow gold and platinum, set with an oval cut pink sapphire of 1.01 carats, between two round brilliant cut diamonds, stamped PLAT, size P

Magnificent diamond three-stone ring created by Lawrence Graff. Features a 10.62-carat natural fancy yellow cut-cornered square modified brilliant cut diamond flanked by two calf's head shape faceted

Three brilliant round cut diamonds sparkle alluringly in a six prong setting with a polished two-tone gold band. Stamped 14k gold / platinum. . Center stone approximately 0.40 ct. Color: FG, Clarity:

Stunning Platinum & Diamond Ring Size 6 - with sizing beads, containing a (1.44ct brilliant round cut diamond center stone) accented with three princess cut diamonds on each side of the band (approx.

Three brilliant round cut diamonds sparkle alluringly in a six prong setting with a polished two-tone gold band. Stamped 14k gold / platinum. Size 5.5 . Center stone approximately 0.40 ct. Color: FG,

A diamond three-stone ring. The brilliant-cut diamond, with old-cut diamond sides. Estimated total diamond weight 0.20ct. Ring size I. Weight 1.7gms.