An early 20th century platinum square-shape cushion-cut diamond ring, with single-cut diamond

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

TIFFANY & CO. - an early 20th century platinum after-set fob watch. The silvered and textured dial with Arabic numerals, to the after-set circular-cut diamond and square-shape ruby chequerboard case a

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

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,

TIFFANY & CO. - a lady's early 20th century platinum diamond cocktail watch. The circular-shape white dial with black Arabic numerals and minute track, with single-cut diamond double surround, similar

An early 20th century platinum diamond cocktail watch. The circular-shape cream dial, with black Arabic numerals, within a single-cut diamond border, to the circular and rose-cut diamond pierced brace

DIAMOND AND SAPPHIRE CLUSTER RING, EARLY 20TH CENTURY The central cushion-shaped diamond, weighing 1.65 carats, within borders of calibré-cut sapphires and single-cut diamonds, ring size Q Footno

An early 20th century platinum and 18ct gold diamond dress ring. The three graduated circular-cut diamonds, within a single-cut diamond scalloped millegrain border. Estimated total diamond weight 0.20

An early 20th century 18ct gold sapphire and diamond cluster ring. The oval-shape sapphire and single-cut diamond surround, with scrolling engraved shoulders. Estimated total diamond weight 0.15ct. Ha

Two 9ct gold gem-set signet rings. To include an early 20th century rose-cut diamond star-set signet ring with engraved surround and raised shoulders, together with a square-shape lapis lazuli signet

An early 20th century 18ct gold sapphire and diamond five-stone ring. The alternating circular--shape sapphire and single-cut diamond line, with openwork gallery and scrolling shoulders. Hallmarks for

An early 20th century 18ct gold diamond and ruby five-stone ring. The graduated circular-shape ruby and single-cut diamond line, with textured shoulders. Hallmarks for Chester, 1919. Ring size Q. Weig

An early 20th century 14ct gold diamond single-stone ring. The old-cut diamond collet, to the rose-cut diamond foliate shoulders with circular-shape emerald accents. Principal diamond estimated weight

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

An early 20th century 18ct gold zircon and diamond cluster ring. The circular-shape zircon, within a single-cut diamond surround, with tapered shoulders. Estimated total diamond weight 0.15ct. Ring si

An early 20th century ruby and diamond ring. The cushion-shape ruby, with vari-cut diamond stepped surrounds. AF. Estimated total diamond weight 0.50ct. Ring size N. Weight 6.8gms.

A mid 20th century 18ct gold and platinum ruby and diamond cluster ring. The circular-shape ruby, with single-cut diamond surround and tapered shoulders. Estimated total diamond weight 0.15ct. Stamped

An early 20th century platinum and 18ct gold coral and diamond dress ring. The replacement oval-shape coral cabochon, within a rose-cut diamond openwork panel surround, to the similarly-set diamond sh

AN ART DECO RUBY AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, the rectangular face set with a step cut ruby accented by single cut diamonds, stamped 18ct Plat, size M /

NO RESERVE - AN ANTIQUE GARNET INTAGLIO AND DIAMOND SEAL / SIGNET RING, EARLY 20TH CENTURY in platinum, set with a cushion cut garnet, the table reverse carved in detail to depict a coat of arms, acce

Two mid 20th century 18ct gold and platinum, diamond and sapphire rings. The first designed as a circular-shape sapphire with single-cut diamond surround, the second designed as a circular-cut diamond

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.).

American, 2nd quarter 20th century. One stamped "750" white gold ring of elongated hexagonal shape, center bezel set round diamond approx. .13ct., with small single cut diamonds and square cut rubies

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