Sold2022J.B. Star, Platinum Diamond Ring, Marquise DiamondJ.B. Star, Platinum Diamond Ring, Size 4.75, Consisting of One Marquise Cut Diamond Weighing 1.00 Cts. and 72 Round Brilliant Cut Diamonds Weighing 0.75 Cts..See Sold Price
Sold2019JB Star 18K Gold Platinum Diamond 3.44ct Tanzanite RingMETAL: 18k Gold, Platinum. GEMSTONES: Diamonds approx. 2.16ctw. Tanzanite approx. 344ct. MEASUREMENTS: Ring size 4 3/4, ring top is 9.3mm wide. MARKED: JBS PT900 18k. WEIGHT: 12.7 grams.Gemstones haveSee Sold Price
Sold2019J. B. Star Platinum Diamond Engagement Ring SettingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.28ctw. Center of the ring will keep approx. 6mm x 5mm stone. MEASUREMENTS: ring size 6 1/2, ring top is 6.8mm wide. MARKED: PLAT JBSTAR. WEIGHT: 5.4 gramSee Sold Price
Sold2023CERTIFICATED CEYLON SAPPHIRE AND DIAMOND RINGCERTIFICATED CEYLON SAPPHIRE AND DIAMOND RING,Platinum.Blue sapphire of 6.11 ct. (Certificated, Ceylon, no heat).Diamonds totalling approx. 1.50 ct.Size O. 7.5 grams.Signed JB Star.For certificate seeSee Sold Price
Sold2022Stunning JB Star Diamond, Emerald and Platinum Ring, Beautifully Designed and Crafted Totaling overStunning JB Star Diamond, Emerald and Platinum Ring, Beautifully Designed and Crafted Totaling over 2.5 Carats in Diamonds and 1 Carat in Emeralds. JB Star, a premier luxury jewelry manufacturer, estaSee Sold Price
Sold2021Star Ruby and Diamond RingA platinum ring with a center round star ruby of approx. 7mm diameter x 5mm deep, surrounded by 10 marquise cut diamonds of approx. 0.70ct total diamond weight. Ring size 6 with sizing beads. 3.8 dwt.See Sold Price
Sold2017Ladies Platinum Art Deco-Style Star Sapphire RingLadies vintage Art Deco-style platinum ring with oval cabochon star sapphire approximately 18 x13mm, fair very light grey-blue color, good star, eye clean, with two marquise diamonds approximately .35See Sold Price
Sold2023Vintage Retro Star Sapphire Platinum Diamond Ring Size 6This is a vintage retro platinum ring featuring a large star sapphire accented by round brilliant and baguette cut diamonds. The diamonds are VS clarity and GH color. The ring is a size 6 US and it weSee Sold Price
Sold2023Platinum and Marquise Diamond RingPlatinum and marquise cut diamond ring, diamond 3.04 ct, F color, VS1 clarity, ring size 5 3/4. With GIA report. Provenance: Manchester, Massachusetts collection. PLEASE NOTE: payment for silver, goldSee Sold Price
Sold2022Men's Mid Century Platinum, Star Sapphire & Diamond Ringsize 13 ring; the blue-gray star sapphire measures 21 x18 x13.9 mm with an estimated weight of 58 carats; sapphire displays natural color zoning and cracks are present in the crown and pavilion side wSee Sold Price
Sold2022Ladies Platinum Star Ruby Diamond RingLadies platinum and star ruby ring. The ring features a prong set, 5.98 carat star ruby, surrounded by 30 undulating baguette cut diamonds. Measures 17 mm in width. Size 5 1/2. Marked "100% IRID PLAT,See Sold Price
Sold2015VINTAGE PLATINUM, STAR SAPPHIRE & DIAMOND RINGVintage ladies platinum, star sapphire and diamond estate ring; (1) natural star sapphire corundum, oval cabochon-cut, weighing approx 24.63cts, tone: medium dark, saturation: grayish, hue: blue, theSee Sold Price
Sold2023Art Deco Platinum Star Sapphire & Diamond RingArt Deco Platinum 10.79ct. Blue Star Sapphire & 0.86ct. Diamond Ladies Ring. Size approx. - 4 - 4 1/2. Star sapphire - 12mm x 9mm x 9.25mm, weighing approx. 10.79ct. Sapphire is of slightly violetSee Sold Price
Sold2020A 35.00CT STAR SAPPHIRE GOLD PLATINUM AND DIAMOND RINGA 35.00CT STAR SAPPHIRE GOLD PLATINUM AND DIAMOND RING A 35.00CT STAR SAPPHIRE GOLD PLATINUM AND DIAMOND RING one polished oval star sapphire flanked by two triangular cut diamonds set in a 14K gold tSee Sold Price
Sold2022Platinum Aqua Diamond Marquise RingPlatinum Weight 4.5g Aqua Approx. 1.97ct Diamond Approx. 0.45ct Marquise Ring Size 7 Measurements 0.89”x0.74”See Sold Price
Sold2023PLATINUM STAR RUBY & DIAMOND RINGPlatinum Star Ruby and Diamond Ring with GIA having center bezel set oval double cabochon cut natural star ruby weighing 16.95 carats, GIA Report #2161718995; set with 30 round brilliant cut diamondsSee Sold Price
2020PLATINUM RUBY MARQUISE & DIAMOND RINGset with a center marquise ruby approx. 11x6mm, flanked with 2 ruby baguettes each approx. 3x1.5mm, and accented with 12 round diamonds approx. 0.25 carats, stamped 'PLAT', tests platinum, overall gooSee Sold Price
SoldAN ART DECO PLATINUM AND DIAMOND RINGAN ART DECO PLATINUM AND DIAMOND RING Centering a marquise-cut diamond and further-set with single-cut diamonds, approximate total weight 0.50 carats, millegrain accents, weight 2.1 dwt, size 4 1/2.See Sold Price
Sold2023Platinum and Diamond RingPlatinum and Diamond Ring set with center marquis diamond, flanked by emeralds having openwork and small diamonds size 4 1/4, 4.4 x 8.2 millimeters Condition: very worn, repairedSee Sold Price
2023Platinum Diamond Art Deco RingPlatinum diamond ring with marquis, trillion and round cut diamonds, approx. 2 ctw, size 7, 2.6 DWT.See Sold Price
2023Platinum Diamond Art Deco RingPlatinum diamond ring with marquis, trillion and round cut diamonds, approx. 2 ctw, size 7, 2.6 DWT.See Sold Price
Sold2022TIFFANY & CO.: A PLATINUM, STAR SAPPHIRE AND DIAMOND RINGTIFFANY & CO.: A PLATINUM, STAR SAPPHIRE AND DIAMOND RING Centering an oval star sapphire cabochon weighing approximately 16.30 carats, accented by round and trapezoid-shaped diamonds weighing approxiSee Sold Price
Sold2023Platinum, Star Sapphire, and Diamond RingPlatinum, Star Sapphire, and Diamond Ringthe round cabochon star sapphire (13.62 x 12.16 x 7.20 mm) weighing approximately 12.83 carats prong set within a halo set with full cut round diamonds weighinSee Sold Price
Sold2022A platinum, star sapphire and diamond ringPlatinum; Stamped: 10% Irid P / Plat Centering an oval star sapphire gauged at 11.3mm x 9.7mm x 5.15mm flanked on either side by two old European-cut diamonds totaling approximately 0.30ct. and gradeSee Sold Price
6 days LeftHeritage Auctions55289: Diamond, Platinum Ring Stones: Marquise-shaped$11,000