Sold2020ART DECO PLATINUM, DIAMOND, & STAR SAPPHIRE RINGcentering one round cabochon cut star sapphire weighing approximately 5.8 carats; and 35 early round full cut, single cut, and Swiss cut diamonds [G-H/VS2-SI1] weighing approximately 0.90 carats totalSee Sold Price
Sold202255205: Burma Star Sapphire, Diamond, Platinum Ring StoBurma Star Sapphire, Diamond, Platinum Ring Stones: Star sapphire cabochon; baguette and single-cut diamonds weighing a total of approximately 0.55 carat Metal: PlaSee Sold Price
Sold2016ART DECO STAR SAPPHIRE, DIAMOND & PLATINUM RINGAn oval star sapphire cabochon, 23.20 cts. by formula, in strapped platinum and single cut diamond setting with baguette cut diamond shoulder, approx. .80 ct. TW. Ca. 1930. Stamped 10% Irid. Platinum.See Sold Price
Sold2024900PT 8.82 CTTW STAR SAPPHIRE & DIAMOND HALO RINGA gorgeous 900 platinum ring having an 8.08-carat cabochon-cut star sapphire center stone surrounded by a sparkling halo of 0.74-carats of diamonds. Stamped 900pt, 8.08, 0.74. Details and measurementsSee Sold Price
Sold2016A star sapphire, diamond and platinum ringPlatinum, centering a high-dome star sapphire cabochon measuring 10.3 x 9.5 mm with a two-row surround of 32 full-cut diamonds totaling approximately 2.35 cts., graded G-H color and VS clarity, size 6See Sold Price
Sold2018Blue Star Sapphire Diamond Gemstone, Platinum RingLadies vintage diamond and star sapphire ring. Features an oval blue star sapphire cabochon with three round cut and prong set diamonds set around the 9mm x 7.5mm x 7.25mm cabochon. Size 6. Weighs 4.7See 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
Sold2017A PLATINUM AND STAR SAPPHIRE AND DIAMOND LADY'S RING,A PLATINUM AND STAR SAPPHIRE AND DIAMOND LADY'S RING, the mounting centering one cabochon cut gray/blue star sapphire measuring approximately 17.50 x 13.50 x 8.40 millimeters with an approximate weighSee Sold Price
Sold2024900PT 2.32CT STAR SAPPHIRE DIAMOND RING, 8.5.A 900-purity platinum 2.32-carat cabochon cut star sapphire ring accented by a halo of round brilliant cut and tapered baguette diamonds totaling 0.27 carats. Stamped 027, Pt900, S232, K74367, on theSee 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
Sold2015Lady’s Platinum Purple Star Sapphire Diamond DinnerLady’s platinum purple star sapphire diamond dinner ring. Cabochon measures 15.2 x 13.6 x 10 1/2mm tall. Set with 10 round full-cut diamonds, 8 round single-cut diamonds, 10 straight baguette cut diSee Sold Price
Sold2023Platinum Purple Star Sapphire & Diamond RingDESCRIPTION: Platinum (stamped PT900) setting with center purple star sapphire cabochon, approximately 4.2 carats (9.7mm x 8.6mm x 4.7mm) surrounded by ten round brilliant cut diamonds and eight channSee Sold Price
Sold2020SAPPHIRE RINGA Rare Vintage Art Deco Platinum and Diamond Ring, set with a natural lavender cabochon star sapphire flanked by (4) graduated old European cut diamonds on each side, with engraved bezel. Size 3 1/2.See Sold Price
Sold2021Art Deco Filigree Diamond Star Sapphire RingA Platinum art deco filigree diamond ring, set with a star sapphire cabochon 5.1mm, 2-3.4mm; 19 rose cut accent diamonds, and one single cut. Sz.9.5, 3.5 Dwts. Unmarked metal, testing as platinum. TheSee Sold Price
Sold2022Group of Star Sapphire and Diamond RingsMETAL: platinum and 14K white gold GEMSTONE(S): cabochon star sapphire approx. 15.90 x 14.95 x 11.15 mm and 9.45 x 9.35 x 8.40 mm; accented with single and baguette cut diamonds RING SIZE: 7-1/4; 6 WESee Sold Price
Sold2022Star Sapphire and Diamond RingMETAL: platinum GEMSTONE(S): round cabochon star sapphire weighing 6.00 carats; round brilliant cut diamonds weighing 1.00 carats total (carat weight stamped) MEASUREMENTS: ring top 3/4 x 3/4 inch RINSee Sold Price
Sold2022STAR SAPPHIRE AND DIAMOND RINGSTAR SAPPHIRE AND DIAMOND RING Containing one round cabochon star sapphire measuring approximately 13.00 mm in diameter, carved hardstone surround and 24 single cut diamonds. Mounted in platinum. RingSee Sold Price
Sold202214K White Gold Grey Star Sapphire & Diamond Ring14 karat white gold ring with oval cabochon cut grey star sapphire and flanked by four diamonds. Ring size 9. Marked 14K. Stone measures 9 x8mm. Weight: 5.7 grams.See Sold Price
Sold2021Sapphire, Diamond and Platinum RingApprox. 70.0 Carat Star Sapphire, Round Cut Diamond and Platinum Ring. Sapphire measures 22.5mm. Diamonds F-G color, VS-SI clarity. Ring size 5 (with sizing balls). Approx. weight: 28.30 grams. ConditSee Sold Price
Sold20206.92ct Star Sapphire Diamond Platinum RingPlatinum ring with oval 6.92ct star sapphire cabochon, and 0.29ctw in diamonds. Ring size - 6, ring top is 10.5mm. Marked: 6.92, Pt900, D029. Weight - 5.9 grams.See Sold Price
Sold2016This is a 1950's Burmese lavender star sapphire andThis is a 1950's Burmese lavender star sapphire and diamond ring. The ring is centrally set with an oval cabochon cut star sapphire that weighs 8.13cts. It exhibits a nice 3 ray star flanked withSee Sold Price
Sold2019Natural Star Sapphire and Diamond RingNatural Star Sapphire and Diamond Ring 18k white gold, the ring mounted with a cabochon-cut blue star sapphire weighing approximately 19.66 carats, accented by round brilliant-, pear-, marquise- and bSee Sold Price
Sold2015Star sapphire, diamond and platinum ringStar sapphire, diamond and platinum ring Centering one oval star sapphire weighing approximately 22.75 cts., accented by two tapered baguette cut diamonds weighing a total of approximately 0.48 ct., aSee Sold Price
Sold2015ART DECO STAR SAPPHIRE AND DIAMOND PLATINUM RINGOval star sapphire, 31 cts. by formula, with baguette and single cut diamond strapped shoulders, melee approx. .45 ct. TW, ca. 1935. Size 8 3/4. 8.5 dwt.See Sold Price
2 days LeftRiverside GalleriesPlatinum Setting with 14.39ct Star Sapphire and 0.37ct Diamond Ladies Ring$50
6 days LeftRiverside GalleriesPlatinum Setting with 14.39ct Star Sapphire and 0.37ct Diamond Ladies Ring$50
4 days LeftFederal Assets AuctioneersMen's Vintage 14k White Gold 7.24 ctw Oval Gray Star Sapphire Round Diamond Ring$1
2 days LeftElmwood'sA STAR SAPPHIRE AND DIAMOND RING set with a round cabochon star sapphire of 6.16 carats in a border£600
14 hrs LeftSeized Assets AuctioneersPlatinum 43.57 ctw Burma No Heat Cabochon Star Sapphire & Diamond Tennis Bracele$1(1 bid)
May 31Miami Auctions & Appraisals LLC Vintage GIA Star Sapphire 6.00cts Diamond 18K Gold Halo Ring$5,300
2 days LeftElmwood'sAN ART DECO KASHMIR SAPPHIRE AND DIAMOND RING in platinum, set with a sugarloaf cabochon sapphire of£24,000
May 28Miami Auction GalleryVintage GIA Certified Sapphire Ruby Emerald Diamond Platinum Bracelet 42.65 Gr$12,750
May 29Elmwood'sA SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a round cabochon£300
1 day LeftJasper52Vintage 1940's Lab-Created Star Sapphire Diamond Ring 14K White Gold, 10.15 Gram$2,000
3 days LeftColasanti Casa D'Aste18kt white gold with circa 20 ct Ceylon natural star sapphire ring€4,000
May 31Miami Auctions & Appraisals LLC Vintage 1.61cts European Cut Diamond Sapphire Platinum Engagement Ring$9,700