A SOLITAIRE DIAMOND RING in platinum, set with an old cut diamond of 1.75 carats, the shoulders set

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. 

AN ART DECO ONYX AND DIAMOND RING in platinum, comprising a faceted onyx tablet set with an old cut diamond of 0.60 carats, the shoulders set with single cut diamonds and further inlaid onyx, no assay

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.

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

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.

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.

SOLITAIRE DIAMOND RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an old cut diamond, between geometric shoulders, stamped 18ct Plat, size K / 5.25, 2.2g.

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.

A SOLITAIRE DIAMOND RING in 18ct yellow gold and platinum, set with a transitional cut diamond of 0.62 carats, with further diamonds to the shoulders, stamped 18ct Plat, size N / 6.5, 2.3g.

Platinum ring with old European cut diamond weighing approx. .60 ct, diamond solitaire ring with slight color, small diamonds set on shoulders. size 6.75, 1.30 DWT

Platinum ring with old European cut diamond weighing approx. .60 ct, diamond solitaire ring with slight color, small diamonds set on shoulders. size 6.75, 1.30 DWT

Unmarked Platinum ring with old European cut diamond approx. 5mm solitaire with slight color, small sapphires per test set on shoulders. ring size approx 6.75. Has a hairline crack in metal on side of

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.

Features a 10.03-carat old oval brilliant cut diamond set in platinum and flanked by two old-mine cut diamonds. The center diamond comes with a GIA Diamond Grading Report stating that it is of I color

A SOLITAIRE DIAMOND DRESS RING set with an old cut diamond of 0.25 carats, accented by two single cut diamonds, no assay marks, size L / 5.75, 2.7g.

A 1.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 1.01 carats, the band half set with further round brilliant cut diamonds, partial British hallmark

AN ART DECO DIAMOND DRESS RING in platinum, set with an old cut diamond of 2.20 carats, between pairs of old cut diamonds, French assay marks for platinum, size L / 5.5, 5.8g.

A DIAMOND DRESS RING set with a hexagonal step cut diamond of approximately 1.75 carats, the shoulders set with baguette cut diamonds, stamped 750 18Kt, size M / 6.25, 5.7g.

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 SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an old cut diamond of approximately 1.50 carats in a double border of step cut sapphires and old cut diamonds, the band accented by fu

A SOLITAIRE DIAMOND RING in 18ct yellow gold, set with an old cut diamond of 1.13 carats, stamped 18ct, size N.5 / 6.75, 2.8g.

A SOLITAIRE DIAMOND RING in yellow gold, set with an old cut diamond of approximately 1.06 carats, no assay marks, size R / 8.75, 2.6g.

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

A 1.00 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 1.00 carats, accented by further round brilliant cut diamonds to the band, British hallmarks for p