*An 18 Karat Yellow Gold and Platinum 'Cynnabar' Ring,

An 18 Karat Yellow Gold and Platinum 'Cynnabar' Ring, Dunay, consisting of textured gold knot design with platinum swirl accents. Stamp: DUNAY 18K A2303 5%RUTHPLAT. 10.50 dwts. Property from the Colle

A Pair of 18 Karat Yellow Gold and Platinum 'Cynnabar' Earclips, Dunay, consisting of polished and textured gold layers with platinum swirl accents. Stamp: DUNAY 18K B1552 5%RUTHPLAT. 20.90 dwts. Prop

An 18 Karat Yellow Gold, Platinum and Diamond Ring, containing one old European cut diamond weighing approximately 1.24 carats, and two old European cut diamonds weighing approximately 1.60 carats tot

An 18 Karat Yellow Gold, Platinum and Diamond Ring, Montreaux, unsigned, containing 105 round brilliant cut diamonds weighing approximately 6.50 carats total. Stamp: 18K. 10.40 dwts.

18 Kt. yellow gold and platinum ring with squared shank, center 4-prong set with one Round Brilliant cut Diamond [H/VS-2], approximately 0.68 ct., accented with 22 full cut round Diamonds [H/VS], appr

An 18 Karat Yellow Gold, Platinum and Diamond Ring, Kurt Wayne, Circa 1973, containing nine round brilliant cut diamonds weighing approximately 1.45 carats total. Stamp: KW 1973 24611 18K. 9.80 dwts.

An 18 Karat Yellow Gold, Platinum and Diamond Ring, containing five square step cut diamonds weighing approximately 0.50 carat total. Stamp: 18K. 9.50 dwts. Estimate $ 300-500

An 18 Karat Yellow Gold, Platinum and Diamond Ring, Jabel, containing seven round brilliant cut diamonds weighing approximately 0.50 carats. Stamp: 18K JABEL 6 50. 2.10 dwts.

An 18 Karat Yellow Gold, Platinum, Onyx and Diamond Ring, Montreaux, unsigned, containing one round cabochon cut onyx measuring approximately 16.60 mm in diameter and 20 round brilliant cut diamonds w

An 18 Karat Yellow Gold, Platinum, Amethyst and Diamond Ring, Richard Krementz, containing one square cabochon cut amethyst weighing approximately 7.86 carats and 40 round brilliant cut diamonds weigh

An 18 Karat Yellow Gold, Platinum, Iolite and Diamond Ring, Diana Vincent, containing a sugarloaf cut iolite measuring approximately 8.10 x 8.22 mm and 13 round brilliant cut diamonds. Stamp: PT 950 7

An 18 Karat Yellow Gold, Platinum, Rubellite Tourmaline and Diamond Ring, Molberg, containing one triangular mixed cut rubellite tourmaline weighing approximately 8.90 carats and 28 round brilliant cu

A Demantoid Garnet and Diamond Ring. Platinum topped 18 karat yellow gold mounting contains one bezel set oval demantoid garnet which is approximately 2.08 carats. Garnet contains a horse tail inclusi

Including a platinum ring center bezel set with one emerald cut Emerald, approximately 0.77 carats, accented with two Old European cut Diamonds [G/VS], approximate total weight 0.14 carats, further en

.55CT center stone with about 1/2ct of accent stones. VSll quality stones. Set in an 18 karat yellow gold & platinum band. From a Miami Beach estate. Size 4. Total weight 59 grams. Shipping U.S. $20 p

An Opal Ring. 18 karat yellow gold and platinum mounting contains one oval cabochon opal with three prong set diamonds on either side. Opal is approximately 5.40 carats Size: 6.5 Wt: 7.0 grams

Tiffany & Co. Schlumberger 18K Gold, Platinum & Diamond RingA wide 6-row rope style band in 18 karat yellow gold accented by 4 stations of X's in a polished platinum. The X's are embellished with roun

A Sapphire Ring. Brushed two-tone platinum and 18 karat yellow gold mounting contains one faceted oval sapphire Size: 10.5 Wt: 13.5 grams

Approx. 2.55 Carat Oval Cut Emerald, .80 Carat TW Two Trillion Cut Diamond, Platinum and 18 Karat Yellow Gold Ring. Emerald with vivid color. Diamonds G-H color, VS-SI clarity. Stamped Plat 18K. Ring

Vintage Approx. 4.0 Carat TW Seventy Baguette and Round Brilliant Cut Diamond, Platinum and 18 Karat Yellow Gold Ring Setting. Diamonds D-E color, VVS-VS clarity. Ring octagonal opening approx. 11.5mm

GIA Certified 4.0 Carat Emerald Cut Natural Fancy Light Yellow Diamond, Platinum and 18 Karat Yellow Gold Engagement Ring. Yellow diamond VVS2 clarity. Accented with 1.50 carat TW two trapezoid shape

Contemporary Italian Twelve Small Round Brilliant Cut Diamond, Platinum and 18 Karat Yellow Gold Flexible Ring. Stamped Italy, 18K, Pt950. Ring size 6+/-. Approx. weight: 5.6 grams. Condition: Very go

Vintage Platinum and 18 Karat Yellow Gold Band / Ring. Stamped Plat 750. Ring size 8-1/4. Approx. weight: 9.9 grams. Condition: Good vintage condition. Light surface wear. Estimate: $100.00 - $300.00

Featuring one round Brilliant cut diamond [Fancy Irradiated Yellow/VS-1], approximately 0.46 carats, set in a platinum mounting; size 6; weighs 3.4 grams