An early 20th century platinum diamond and coral cl

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

11.4 grams total weight. With old European and mine cut diamonds, 15 total. 3.25 ct. total, largest diamond .38cts. VS - SI clarity and I-J-K color. Small chip on central diamonds. Top of pin platinum

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

A ladies early 20th century platinum diamond manual wind cocktail watch. The white dial with black Arabic numerals and minute track, with old and single-cut diamond bezel and expandable bracelet. Esti

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 and gold, old and rose-cut diamond ring.Estimated total diamond weight 0.75ct. Ring size P. 5.3gms.

Early 20th Century Platinum and Diamond Bracelet. Openwork design set with seven round diamonds of graduated size, alternating with accent diamonds. Unmarked. Good condition. Approximately 14.4 grams.

An early 20th century platinum and gold diamond pendant. Of circular outline, the pave-set diamond monogram reading the letters A and M, suspended from a loop surmount. Estimated total diamond weight

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

An early 20th century platinum and 9ct gold diamond cocktail watch. The silvered dial, with vari-cut diamond bezel and geometric lugs, to the later 9ct gold adjustable mesh strap. Estimated total diam

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

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

EARLY 20TH CENTURY PLATINUM AND OLD MINE CUT DIAMOND ARROW PIN. Point and feather tail set with total of 28 old mine cut diamonds together weighing approximately 2.75 ct. - L: 3".

incisa e sbalzata, con tre diamanti centrali taglio vecchio e diamanti taglio rosa, cts. 4.00 totali circa. Cm. 9. Gr. 8 An early 20th Century platinum brooch with old cut diamonds and rose cut diamon

An early 20th century platinum and gold, turquoise and old-cut diamond cluster brooch.Turquoise estimated dimensions of 17.6 by 16 by 8.5mms.Estimated total diamond weight 3.90cts, G-I colour, SI1-P1

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 to mid 20th century platinum and 18ct gold old-cut diamond floral dress ring.Estimated total diamond weight 1.20cts, H-I colour, SI1-P1 clarity.Ring size O1/2. 3.3gms.

A pair of early 20th century 18ct gold and platinum lapis lazuli and diamond cufflinks. Each designed as two octagonal-shape lapis lazuli and rose-cut diamond cluster panels, to the connecting link. L

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

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

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

AN EARLY 20TH CENTURY DIAMOND ETERNITY RING, CIRCA 1920 The continuous row of old brilliant-cut diamonds, the sides of the hoop engraved with scroll detailing, mounted in platinum, diamonds approximat

AN ANTIQUE ONYX AND DIAMOND PENDANT, EARLY 20TH CENTURY in platinum, set with a fancy shaped onyx with scalloped decoration and an applied foliate motif set with rose cut diamonds, suspending a diamon

Item/Description: This exquisite antique set came to us from the same Estate. Early 20th Century. Transitional period: Art Nouveau- Art Deco. Filigree work. Panel bracelet set with 15 sparkly white di