An early 20th century platinum diamond two-stone ring.

An early 20th century platinum old-cut diamond two-stone crossover ring, with asymmetric shoulders, estimated total diamond weight 0.55ct, H-J colour, SI2-P1 clarity, band stamped PLAT, ring size N, 2

Two early 20th century platinum and 18ct gold diamond and gem-set rings. To include a diamond three-stone crossover ring, together with an alternating sapphire and old-cut diamond five-stone ring. Est

An early 20th century gold diamond two-stone crossover ring. The circular-cut diamonds, with asymmetric shoulders. AF. Estimated total diamond weight 0.30ct. Weight 1.6gms.

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,

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.

Two early 20th century 18ct gold diamond and sapphire dress rings. To include a graduated oval-shape sapphire three-stone ring with diamond point double spacers, together with an alternating circular-

Two early 20th century 18ct gold diamond and gem-set rings. To include a blue gem and single-cut diamond floral cluster ring, together with an old-cut diamond three-stone ring. Estimated total diamond

Two early 20th century 18ct gold diamond rings. To include a single-cut diamond floral cluster ring, together with a diamond five-stone ring. Estimated total diamond weight 0.10ct. Weight 3.7gms. Over

Four diamond rings. To include two early 20th century 18ct gold five-stone rings, a late Victorian 18ct gold three-stone ring, together with one further ring. Estimated total diamond weight 0.30ct. Th

Four diamond rings. To include an early 20th century 18ct gold five-stone ring, an early 20th century 18ct gold three-stone ring, together with two further rings. Estimated total diamond weight 0.60ct

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

Four early 20th century gold gem-set dress rings. To include two 18ct gold ruby and diamond three-stone rings, together with two further ruby and gem-set dress rings. Two with hallmarks for 18ct gold,

ASSORTED 14K GOLD LADY'S RINGS, LOT OF EIGHT, marked, several set with melee diamonds, two lacking stone. Total weight: 16.3 grams. Mid 20th/early 21st century. Various sizes.Excellent condition.Prove

Lot of two early 20th century antique rings. One 10k white gold genuine mine cut diamond cocktail ring, approx size 5 (missing stones). One 14k yellow gold Edwardian ring with inconclusive diamond (no

SIGNED TIFFANY & CO. ART DECO PLATINUM, DIAMOND AND SAPPHIRE LOW DOME RING, early 20th century. Old European cut round diamond weighing approx 1.00 ct. Centered by two lines of six calibré-cut sapp

An antique early 20th-century French Art Deco 14K white gold, sapphire, and diamonds two-piece jewelry set, a pair of drop earrings and a cocktail ring. The ring is set with an oval sapphire stone enc

NO RESERVE - A DIAMOND TOI ET MOI RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with two old European cut diamonds, stamped 18ct Plat, size K / 5.25, 2.7g.

An early 20th century European platinum engagement ring set with old mine brilliant cut diamonds with a 0.9ct center. Hallmarked and cast in 90% platinum. Fine Fashionable Natural Precious Stones Jewe

TIFFANY & CO. PLATINUM AND DIAMOND RINGAmerican, late 20th- early 21st century, platinum. Twenty-two (22), approx. 2.87mm each and 1.76 total carat weight, channel set diamonds to band, marked to inte

American, early 20th century. Stamped 14K yellow gold by-pass style ring (newer shank), center round platinum plate set with twenty-two (22) mixed cut round diamonds (old mine cut, single cut, etc.).

An early 20th century platinum and gold, old and rose-cut diamond ring.Estimated total diamond weight 0.75ct. Ring size P. 5.3gms.

An early 20th century diamond single-stone ring The old brilliant-cut diamond, weighing 4.03 carats, between tapered single-cut diamond three-stone shoulders, French assay marks(Ring size: N)

A mid 20th century platinum diamond five-stone ring. The graduated old-cut diamond line, to the ridged shoulders and plain band. Estimated total diamond weight 0.65ct, I-J colour, SI1-P1 clarity. Weig

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