A SYNTHETIC BLUE SPINEL AND DIAMOND RING, EARLY 20TH

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

A SAPPHIRE AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires, accented by pairs of old cut diamonds, stamped 18ct, size O / 7.25,

18K Gold. Stamped & Trademarked. Weight: 10.16g gross. Contains: one round faceted blue synthetic spinel of approximately 22cts by gauge. Twenty-four single cut diamonds of approximately 0.70cts total

Art Deco Sapphire & Diamond Ring in Platinum , Early 20th century, platinum, American. Art Deco ring set with .60cttw diamonds I-G color and SI2-SI1 clarity and .50 cttw blue sapphires. Hallmark: Plat

Modernist 14k yellow with white gold ring having domed cabochon blue spinel type and synthetic pave set diamonds Ring Size 8.5 total weight 11.3 grams Provenance: The Estate of Barbara "Babs" Baugh,

Two gem-set rings. To include a 9ct gold sapphire and diamond three-stone crossover ring, together with a synthetic blue spinel and paste accent ring. One with hallmarks for London, 1979. Total weight

AN EARLY 20TH CENTURY SYNTHETIC COLOUR-CHANGE SAPPHIRE AND DIAMOND CLUSTER RING a cushion-cut synthetic colour-change sapphire within a milgrain border of round-cut diamonds. Estimated total diamond w

An early 20th century 18ct gold synthetic ruby, ruby and diamond dress ring. The circular-shape synthetic ruby and ruby line, with rose-cut diamond surround and openwork gallery. Hallmarks for Chester

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,

An early 20th century platinum and 9ct gold blue zircon and single-cut diamond cluster ring.Zircon calculated weight 1.96cts, based on estimated dimensions of 6.85 by 4.5mms.Estimated total diamond we

A Synthetic Blue Spinel Cocktail Ring. 14 karat yellow gold mounting contains one emerald cut synthetic blue spinel and four prong set round diamonds Size: 7.5 Wt: 10.9 grams

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

United States,20th Century Includes a size 6 1/2 class ring set with a ruby, a size 3 1/2 class ruby cabochon ring, a size 4 1/2 ruby ring, a size 3 1/2 diamond ring surrounded by deep blue spinel, a

An early 20th century 18ct gold, ruby and diamond ring. The cushion-shape ruby cross, with single-cut diamond sides and foliate shoulders. One synthetic ruby replacement. Estimated total diamond weigh

METAL: 18k Gold. MEASUREMENTS: Ring size - 6.25, ring top - 18mm x 16mm. GEMSTONES: Blue stone (tested synthetic spinel RI 1.730), Diamonds approx. 0.38ctw. MARKED: 18k. WEIGHT: 4.1 grams.Gemstones ha

Heavy Platinum Flame Fusion Blue Sapphire 1.65ctw Fine Diamond Statement Ring 15.8grams Description:The center stone is an early synthetic flame fusion blue sapphire, enhanced with 1.65 carats of extr

1) 10K yellow gold ring featuring a synthetic sapphire and diamonds, sz 10.5, and 2) 10K blue spinel school ring by Josten, sz 10, and 17.9 grams tw

Three Early 20th Century White Gold Gentleman's Rings. Including 1 14 kt set with a single round, brilliant cut diamond and 2 10 kt, one of which with a blue sapphire the other a linde star sapphire,

ASSORTED 14K GOLD LADY'S RINGS, LOT OF TWO, marked, comprising an amethyst and a blue stone, possibly a topaz, each flanked by melee diamonds. Total weight: 11.1 grams. Fourth quarter 20th/early 21st

ANTIQUE BLACK OPAL AND DIAMOND RING, EARLY 20TH CENTURY mounted in yellow gold, claw-set with an oval black opal measuring 14.8 x 10.5mm,and weighing approximately 3.36 caarts, within a border of circ

A diamond ring, early 20th century, set with a drop-cut diamond weighing approximately 2.40 carats, with vari-cut diamond foliate sides and surround, size 11/51, weight 7 grams.

AN ANTIQUE PEARL AND DIAMOND RING, EARLY 20TH CENTURY in yellow gold, the openwork face set with an old cut diamond and two pearls in a border of rose cut diamonds, further rose cut diamonds set to th

ANTIQUE TURQUOISE AND DIAMOND RING, EARLY 20TH CENTURY claw-set with a cabochon turquoise, within a border of cushion-shaped diamonds, size Q / 8, unmarked, estimated total diamond weight 0.60-0.80 ca

EDWARDIAN PLATINUM AND DIAMOND RINGEarly 20th CenturyFull-cut diamonds, approx. 5.0mm x 3.6mm and approx. 4.6mm x 3.0mm, flanked by four small diamonds. Maker’s mark “SRS”. Size 3&#1