Platinum and Diamond Solitaire, c. 1915, centering an old European-cut diamond weighing approx. 1.90

c. 1915 platinum ring featuring 12 main old European cut diamonds weighing approx. 4.00 ctw set in an elongated rectangle with 14 additional smaller diamonds set in between large ones and down the sha

c. 1915 platinum dangle earrings containing marquise and Old European cut diamonds weighing approx. 1.50 ctw with milgrain accent posts with friction backs, 1 in. L, 8 grams

GENT'S RING - 14K Gold and Old European Cut Diamond Solitaire. Centering a gypsy set old European cut diamond weighing approx. 1.08 cts; Color: VVS; Clarity: L, set with six hand engraved prongs to th

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

Platinum, Diamond, and Sapphire Ringca. 1920s; centering an old European-cut diamond weighing approx. 2.10 cts. surmounted by channel-set sapphires and single-cut diamonds in a platinum filigree mount

platinum diamond ring, 1918, old European cut diamond weighing approx. .70 ct, with six round diamonds on the shoulders, near colorless, slightly included, size 6.75, 2.8 DWT

platinum diamond ring, 1918, old European cut diamond weighing approx. .70 ct, with six round diamonds on the shoulders, near colorless, slightly included, size 6.75, 2.8 DWT

Platinum and Diamond Ringthe three stone ring centering a millegrain bezel-set old European-cut diamond weighing approx. 0.84 ct. flanked by millegrain bezel-set old European-cut diamonds weighing app

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

c.1920s platinum ring featuring an Old European cut diamond weighing approx, 2.60 carats with an average color grade of K - L and an average clarity grade of VS bezel set in center of ring with additi

Platinum and Diamond Ring Centering one old European-cut diamond weighing 1.83 cts., 4 tapered baguette diamonds ap. 60 ct., ap. 3.4 dwts. Size 5 1/2. The diamond has been weighed. C Property of a Pri

c. 1920's Art Deco platinum ring featuring two Old European cut diamond weighing approx. 1.00 ctw set in a bypass style with French cut emeralds to accent the bypass, with additional Old European cut

c. 1930, Platinum ring featuring a round cut sapphire measuring approx. 5 mm in diameter, two old European cut diamonds weighing approx. 0.50 ctw, engraved mounting with milgrain edge, sz 7.25, 4.1 gr

centering an old European-cut diamond, measuring approximately 9.05 x 9.1 x 5.7mm, weighing an estimated 2.95cts., K-L color/VS-SI clarity, accented by 4 round brilliant and baguette-cut diamonds weig

c. 1910 Art Deco platinum diamond ring featuring an Old European cut diamond measuring 10.2 x 9.8 x 6.7mm weighing approx. 4.51 ct bezel set in the center of the ring with 10 additional Old European c

1910-1915 Edwardian diamond and platinum ring, comprising 1.25 ctw old European and swiss cut diamonds (I-J color, Si1-Si2 clarity), Duchess style. Fineness marked, PLAT. Approx. US 4.5, total weight

platinum diamond hair barret, old European cut diamonds weighing approx. 1.2 ct, HI VS-SI, measures 2 inches, weight 4.5 dwt

AN ART DECO PLATINUM AND DIAMOND RING Centering an old European-cut diamond weighing approximately 0.50 carats, with old European-cut diamond shoulders, pierced mount, together with an engraved platin

An Edwardian platinum and diamond brooch pendant centering an old European-cut diamond weighing approximately 1.25 carats; accented by single and old European-cut diamonds; total remaining diamond wei

Edwardian Diamond, Platinum Ring. Centering one old European-cut diamond weighing approximately 1.50 ct., flanked by two old European-cut diamonds weighing a total of approximately 0.75 cttw., accente

Art Deco Diamond, Platinum Ring. Centering one old European-cut diamond weighing approximately 1.20 ct., accented by two full-cut, six baguette-cut and twenty-six single-cut diamonds weighing a total

Diamond, Platinum Ring. Centering one old European-cut diamond weighing approximately 0.95 ct., accented by four single-cut diamonds weighing a total of approximately 0.10 cttw., set in a platinum mou

THREE DIAMOND RINGS Comprising two art deco platinum and diamond rings, one centering an old European cut diamond, weighing approximately 0.51 carats, filigree mount with single-cut diamond accents, a