Platinum and Diamond Solitaire, set with an old mine brilliant-cut diamond weighing 1.53 cts.,

Art Deco solitaire ring from the 1940s, made in platinum with a brilliant cut central diamond, weighing approximately 2.80 cts., Color J, clarity S1, set in 6 claws. Weight: 17.14 grs. Measurements: 1

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

Platinum and Diamond Solitaire, bezel-set with a full-cut diamond weighing approx. 2.90 cts., framed by blue stones, the mount set with diamond melee, engraved accents, size 5 1/4.

Edwardian Diamond and platinum engagement ring Set with an old European-cut diamond weighing approx. 1.95 cts and single-cut diamonds; 1910s Platinum Ring size 6.50; Gross weight 2.1 dwts Sold with bo

Platinum, Diamond and Sapphire Straightline Bracelet Marked '100% IDIUM'; set with 20 old European-cut diamonds weighing approximately 1.40 cts. and 20 emerald cut sapphires weighing approximately 4.0

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 14 Karat Yellow Gold, Platinum and Diamond Solitaire Necklace, containing one round brilliant cut diamond weighing approximately 0.65 carat bezel set in platinum with a yellow gold halo and attached

ESTATE DIAMOND AND PLATINUM RING, set with 41 Old Mine-cut and single-cut diamonds together weighing approximately 2.05 cts. The ring weighs 7.6 grams and is stamped "PLATINUM". Ring size: 6.

Diamond and platinum wedding ring set one engagement ring features (1) old mine cut diamond weighing 1.16 cts., flanked by (4) full cut diamonds weighing a total of approximately 0.10 ct., set in a pl

Centering one round brilliant-cut diamond weighing 5.02 cts., accented by fifteen round brilliant-cut diamonds weighing a total of approximately 2.25 cttw., set in a platinum and 18k yellow gold engr

Diamond, platinum and 18k yellow gold ring Featuring (1) round brilliant-cut diamond, weighing 5.11 cts., flanked by (6) baguette-cut diamonds, weighing a total of approximately 0.60 ct., set in a pla

Platinum mid-century ring featuring a well cut and proportioned round brilliant cut diamond set in four prongs, weighing approx. 2.15 cts, I-J color, VS clarity, with two tapered baguettes, 6.5 sz, 5.

Platinum sapphire and diamond ring having 1.75 ct. center sapphire with GIA certification report #6213249294; set with 52 baguette and round brilliant cut diamonds weighing approx. 0.54 cts., clarity

Diamond, Platinum Ring. Featuring one round brilliant-cut diamond weighing approximately 2.40 cts., accented by eighteen single-cut diamonds weighing a total of approximately 0.08 cttw., set in a plat

Tiffany & Co. Diamond, Platinum Ring. Featuring one round brilliant-cut diamond weighing approximately 1.05 ct., set in a solitaire platinum mounting. {Size 5 1/4, Gross Weight: 2.8 dwts}

Featuring one round brilliant-cut diamond weighing approximately 1.90 cts., accented by two baguette diamonds weighing a total of approximately 0.16 cttw., set in a platinum ring mounting, size 6 1/2.

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

0.82ct oval diamond set solitaire ring. Centre diamond G/H colour, Si3 clarity. Shoulders micro set with brilliant cut diamonds, H colour, si clarity weighing 0.26ct. Set in Platinum, ring size K. Val

A diamond and platinum solitaire necklace Centering a brilliant pear cut diamond weighing 3.82 carats, set in a platinum basket setting, suspending from a platinum rope chain. (16inches5.7dwt(without

Featuring one old mine-cut diamond weighing approximately 4.23 cts., accented by four European cut diamonds weighing a total of approximately 0.60 cttw., set in a platinum and 14k yellow gold pendant

Platinum and Diamond Brooch centering a cushion old mine-cut diamond weighing approx. 3.00 cts. surmounted in a bow and starburst design set with old mine-cut diamonds; approx. 6.00 tcw.; 13.89 dwts.;

Platinum Art Deco engagement ring containing old European cut diamond measuring 8.09mm weighing approx 2 cts., 6 marquis cut diamonds set in floral design on shoulders of ring, size 5.5, 4 grams tw

Diamond and platinum ring Featuring (1) old European-cut diamond, weighing approximately 2.00 cts., accented by (28) single-cut diamonds, weighing a total of approximately 1.40 cts., set in a platinum

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