A Raymond Yard 6.53 Carat Round Brilliant-Cut Diamond and Platinum Ring

convertible to two dress clips; signed 'Yard'; containing two round brilliant cut diamonds [G-H/SI] weighing approximately 1.00 carat total; 166 old full and single-cut diamonds [G-H/VS-SI] weighing a

Raymond C. Yard Diamond Penguin Brooch platinum, the brooch mounted with round brilliant-cut diamonds weighing approximately 2.50 carats in total, accented with black enamel, stamped "YARD". size 1-1/

GIA Certified 10 Carat Round Brilliant Cut Diamond Platinum RingThis diamond ring is offered by Antinori di Sanpietro ROMA This 10 carat GIA Certified G Color S12 Clarity round cut diamond measuring 1

Vintage Christian Dior Large Cabochon Amethyst, .21 Carat Round Brilliant Cut Diamond and Platinum Ring. Amethyst measures 21mm x 17.5mm. Signed, stamped Pt900. Ring size 4-3/4. Approx. weight: 19.2 g

Vintage 1.42 carat round brilliant-cut diamond and platinum ring with GIA certificate, color: N, clarity: VS2, marked: "900 PLAT / 10% IRID." 0.937" L x 0.27" W at widest section; size: 6 1/4. Approx:

Extremely Rare GIA and AIG Certified 1.02 Carat Natural Unheated Pear Shape Ruby, .54 Carat Round Brilliant Cut Diamond and Platinum Ring. Ruby with good saturation of color. Diamonds D-E color, VS1-V

TIFFANY & CO., ELSA PERETTI, PLATINUM 'DIAMONDS BY THE YARD' RING Round brilliant cut diamonds. Platinum. Ring size 4 1/4. Stamp: PERETTI PT950 T&CO. Gross weight: 2.35 dwt. This l

Vintage Approx. 4.87 Carat Round Brilliant Cut Diamond and Platinum Engagement Ring. Diamonds K-L color, VS2 clarity. Unsigned. Very good condition. Ring size 4-1/4. Approx. weight: 6.3 grams. Shippin

Approx. 4.38 Carat Round Brilliant Cut Diamond and Platinum Engagement Ring accented with small baguette and round brilliant cut diamonds. Center diamond K-L color, VS clarity. Stamped Plat. Ring size

Vintage Approx. 3.03 Carat Round Brilliant Cut Diamond and Platinum Engagement Ring. Diamond K-L color, SI1 clarity. Signed Plat. Very good condition. Ring size 6. Approx. weight: 3.80 pennyweights. S

GIA Certified 1.65 Carat Round Brilliant Cut Diamond and Platinum Engagement Ring. Accented with two small tapered baguette diamonds. Center diamond G color, VS2 clarity. Stamped Plat. Ring size 5-3/4

Vintage GIA Certified 2.06 Carat Round Brilliant Cut Diamond and Platinum Engagement Ring accented with Approx. ,73 Carat TW Round Brilliant Cut Diamonds. Center diamond J color, I1 clarity. Accent di

4.75 Carat Oval Opal, .32 Carat TW Round Brilliant Cut Diamond and Platinum Ring. Opal with good play of multi color. Diamonds F-G color, VS clarity. Stamped Pt900. Ring size 6. Ring top measures 3/4"

EGL Certified .81 Carat Round Brilliant Cut Diamond and Platinum Engagement Ring and Wedding Band accented throughout with Round Cut Diamonds. Center diamond G color, SI1 clarity. Stamped Plat. Ring s

Vintage Tiffany & Co Diamond and Platinum Wedding Set. Comprising an approx. .48 carat round brilliant cut diamond and platinum engagement ring, F color, VS clarity, together with a Tiffany & Co appro

Fancy Square Cut Citrine, .75 Carat TW Round Brilliant Cut Diamond and Platinum Ring. Citrine with vivid color, measures 13.5mm sq. Stamped Pt900. Ring size 4-1/4. Approx. weight: 15.7 grams. Conditio

Art Deco style Approx. 2.67 Carat Round Brilliant Cut Diamond and Platinum Three Stone Ring accented with .88 Carat French Cut Sapphires. Diamonds E-F color, VS clarity. Sapphires with vivid saturatio

Approx. 8.54 Carat Oval Cut Paraiba Tourmaline, 2.06 Carat TW Sixteen Round Brilliant Cut Diamond and Platinum Ring. Paraiba with vivid greenish blue color. Diamonds E-F color, VS clarity. Stamped Pla

13.26 Carat Oval Cabochon Black Opal, 2.26 Carat TW Eighteen Round Brilliant Cut Diamond and Platinum Ring. Opal with very good play of multi color. Diamonds E-F color, VVS-VS clarity. Stamped Pt900.

Vintage Approx. 2.50 Carat TW Baguette and Round Brilliant Cut Diamond and Platinum Ring. Diamonds H-I color, VS clarity. Stamped Plat. Ring size 5-1/2. Approx. weight: 8.18 grams. Condition: Good vin

Vintage Approx. 1.25 Carat Emerald, Round Brilliant Cut Diamond and Platinum Cross Over Ring. F-G-H color, SI1-SI2 clarity. Signed Platinum. Good condition. Ring size 6, Approx. weight: 6.9 grams. Sip

GIA Certified 4.38 Carat Modified Cushion Cut Natural Fancy Brown-Yellow Diamond, 1.0 Carat Round Brilliant Cut Diamond, Platinum and 18 Karat White Gold Ring. Fancy brown-yellow diamond, VS1 clarity.

Art Deco style Diamond and Platinum Ring. Set in the center with a 1.02 carat round brilliant cut diamond, K-L color, VS1 clarity. Accented with .23 carat TW round brilliant cut diamonds, E-F color, V

Art Deco style Diamond, Sapphire and Platinum Ring. Set in the center with a .70 carat round brilliant cut diamond, G-H color, VS1 clarity. Accented with .30 carat TW round brilliant cut diamonds, E-F