A DIAMOND SOLITAIRE RING in platinum, set with an old European cut diamond of 0.70 carats, the

A SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 3.80 carats accented by two baguette cut diamonds of 0.32 and 0.31 carats, stamped Plat, size N / 6.5, 6.0g.

A 2.02 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with an old European brilliant cut diamond of 2.02 carats to a tapering band, British hallmarks, size N / 6.75, 5.1g.

Tiffany style setting, marked Platinum. Set with approximately 1.06 carat (by formula) Old European cut diamond. Diamond measurements 6.5mm x 6.5mm x 4.1mm. Clarity SI1, Color J-K. 4.4 grams. Size 6.

A 4.37 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old cut diamond of 4.37 carats accented on each side by a baguette cut diamond, full British hallmarks, size Q1/2 / 8.5, 6.6g. 

14K YELLOW GOLD EUROPEAN CUT SOLITAIRE DIAMOND RING 14K yellow gold solitaire diamond ring, set with 1 "Old European" cut diamond weighing approximately 0.64 carat with grades of Clarity: VS-2, Color

AN ART DECO DIAMOND RING, CIRCA 1920 in platinum, set with an old European cut diamond of approximately 1.10 carats in a fine pierced mount set with single cut diamonds, no assay marks, size J1/2

ring with one prong set Old European cut diamond weighing approximately .78 carat (H color, I1 clarity), stamped 18KT and signed, and with affixed vintage platinum band with scrolled engraving, stampe

A FINE DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a principal old European cut diamond of 0.72 carats within a border of single cut diamonds, stamped 18ct Plat, size N1/2 / 7, 2.7

14K yellow gold ring, set with 1 round brilliant cut diamond, approximate weight 0.67 carats, and platinum and diamond ring, set with 1 Old European cut round diamond, weight 0.34 carats, approximate

VINTAGE 14K WHITE GOLD / PLATINUM AND DIAMOND LADY'S RING, marked "DA 14K PLATINUM", cushion top set with nine Old European-cut diamonds weighing approximately 1.0 carat total, each shoulder set with

Diamond and Platinum RingThe ring is set with 46 old European-cut diamonds weighing approximately 3.86 carats, in platinum, with a 14K white gold shank.11.02 gramsSize: 5.25 Provenance: Jewelry from t

Platinum and Diamond Ringset with three old European cut diamonds weighing approximately 1.01 total carats (G-H color, Si2 - I2 clarity) and with milgrain detailing, stamped Platinum. 5.7 x 17.4 mm; R

A SOLITAIRE DIAMOND RING in 18ct yellow gold and platinum, set with an old cut diamond of approximately 0.67 carats, stamped PLAT, size P1/2 / 7.75, 3.2g.

An antique diamond and platinum ring set with four old European-cut diamonds weighing approximately 0.80, 0.75, 0.45, and 0.45 carat each, mounted in pierced and etched platinum with a floral motif. (

An antique Edwardian diamond and platinum ring. The center set with an old European cut round faceted diamond of approximately 1 carat, surrounded by four crescents, each crescent set with 3 round cut

A ladies Art Deco platinum and diamond dome ring, having a central bezel set old European cut diamond (approximately 1.13 carats total weight, color I-J, clarity Si2) with two small bead set old Europ

A ladies handmade Art Deco platinum engagement ring, having an octagonal top with a prong set Old European cut diamond (approximately 0.34 carats total weight, color I, clarity I2) and filigree decora

Lovely Art Deco diamond solitaire ring that features a 5.26-carat Old European cut diamond in a beautiful platinum setting. The diamond is O-P color, VS2 clarity. It is flanked by an old European cut

One ladies platinum diamond ring set with one center Old European cut diamond measuring 7.3mm in diameter and 4.38mm in depth, calculated to weigh 1.50 carats with an estimated color grade of K and es

An Art Deco Diamond & Sapphire Ring. Filigree platinum mounting centers on a bezel set Old European cut diamond which is K color, SI1 clarity and weighs approximately .75 carat. Throughout the mountin

A platinum and diamond solitaire ring, Tiffany & Co. centering an old European-cut diamond weighing approximately 2.60 carats, accented by old European-cut diamonds, mounted in platinum. Stamped Tiffa

Antique Platinum and Diamond Ringcentering on three vertically set old European cut diamonds weighing approximately 1.56 total carats (H-I color, SI1-I1 clarity) and further set to border and shoulder

View a video of this lot: Click HereCrafted in platinum; set with old European-cut diamonds, weighing a total of approximately 2.00 carats, most with J-L color and I clarity; accented

A SOLITAIRE DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond of 0.51 carats within a tapering band, stamped 18ct Plat, size K / 5.25, 2.4g.