Platinum diamond ring set with center diamond 2.58 cts.

Platinum, Emerald and Diamond Ring, center prong set emerald step cut, wt. exact 4.52 cts., 11.00 x 8.57 x 6.36 mm; bezel and shoulders set with 50 prong and bezel set round brilliant cut diamonds, to

Platinum, Ruby and Diamond Ring, center prong-set heart shape brilliant step-cut Burmese ruby, wt. exact 2.35 cts., 7.64 x 8.36 x 4.86 mm; double halo and shoulders with 60 round brilliant cut diamond

Platinum, Emerald and Diamond Ring , center prong set octagonal step cut emerald, wt. approx. 2.63 cts., 9.3 x 7 x 5.3 mm; double halo and shoulders with 124 round brilliant cut diamonds, total wt. ap

Platinum, Sapphire and Diamond Ring , center bezel set emerald-cut sapphire, wt. approx. 2.00 cts., approx. 8.00 x 6.00 mm; tiered bezel and shoulder with numerous prong, bezel and channel set round b

Platinum, Emerald and Diamond Ring , center prong set octagonal step cut emerald, approx. 2.33 cts., 8.70 x 6.44 mm; double halo bezel and shoulder with 72 round brilliant cut diamonds, total wt. appr

Platinum, Blue Sapphire and Diamond Ring, center prong set mixed cut cushion shape sapphire, wt. exact 6.96 cts., 13.37 x 10.40 x 5.71 mm; ballerina bezel with numerous round and tapered baguette shap

Platinum, Diamond and Ruby Ring, center bezel set round brilliant cut diamond, wt. approx. 1.54 cts., H color, I1 clarity; inner surround with 20 square/trapezoid rubies, total wt. 1.01 cts.; outer su

14k men's yellow gold ring with 3 round cut diamonds set in platinum. Center diamond round cut .25 cts, and two side diamonds .1 cts each. Ring size 8 1/2

Circa 1920, Art Deco filigree Ring crafted in Platinum, set with a center Old european Cut Diamond Approx. 0.30 cts. J color, VS clarity. Accented with Old single cut Diamonds Approx. 0.18ctw. Total c

Diamond and platinum engagement ring Set with a modified rectangular-cut diamond weighing approximately 1.60 cts. by formula Platinum Numbered 5014 Ring size 7 3/4; Gross weight 3.7 dwts GIA Report #1

Platinum, Emerald and Diamond Ring Platinum marks rubbed; the center set with an Asher-cut emerald, weighing approx. 3.25 cts., flaked on either side by fancy round diamonds (modified, with cut-off si

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

Bulgari Star ruby, diamond, and platinum ring Set with an oval cabochon star ruby weighing approx. 3.23 cts, flanked by baguette-cut diamonds ; 1930s Platinum Signed Bulgari Ring size 6; Gross weigh

Circa 1920, Art Deco filigree Ring crafted in 18k yellow gold and Platinum on top, set with a center full Cut Diamond Approx. 0.10 cts. J color, SI1 clarity. Accented with four Rose cut Diamonds and S

Jacob & Co. Brown diamond ring Set with a radiant-cut brown diamond weighing approx. 7.01 cts Platinum With maker's mark for Jacob & Co. Ring size 5; Gross weight 18.0 dwts

Color change sapphire, diamond, platinum, and gold ring Set with an oval-cut color change sapphire weighing approx. 3.26 cts, enhanced by three rows of round brilliant-cut diamonds shoulders Platinum

Oscar Heyman Diamond, sapphire, and emerald ring Set with a 1.40 cts oval-cut diamond, surrounded by circular-cut emeralds, sapphires, and oval-cut diamonds Platinum and 18k yellow gold With maker's m

A navette of scrolling foliate and ribbon-bow motifs densely set with rose-cut diamonds, centering millegrained bezel-set OEC diamond, approx. 1.0 cts. and four smaller OEC diamonds surround, approx.

The millegrained oblong head densely-set with OMC or OEC diamonds, approx. 1.25 cts. TW. Size 4. 1.8 dwt.

Platinum ring featuring a round cut sapphire, weighing approx. 1.80 cts, prong set in center and surrounded by a round cut diamonds set in halo, along shoulders, and in gallery, sz. 5, 6.0 grams

Within four-prong platinum setting. Size 6 1/4. 3.9 dwt. Accompanied by GIA Report #6197680158, Dated 20 September 2018, 2.58 cts. Round Brilliant Cut, 9.07 x 8.99 x 5.1 mm, H, VS2, Good Polish and Sy

The square-cut emerald, approx. .39 ct. by formula, bezel-set within open form OEC diamond octagonal head, diamond shoulders, approx. 1.0 cts. TW. Ca. 1925. Size 6 1/4. 2.6 dwt.

Set with a RBC diamond, weighing approx. 1 cts., flanked by RBC diamonds within a frame of baguette and marquise-cut diamonds, melee approx. .40 ct. TW, mounted in millegrained platinum, ca. 1955. Siz

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