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
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
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
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
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
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
Sold202216.46ct Star Sapphire Diamond 14k White Gold Ladies Cocktail RingThis beautiful vintage ring is crafted from 14k white gold featuring a high gallery oval shape bridge with round scallop edge and milgrain decor frame. The center has a gorgeous Star Sapphire held secSee 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
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
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
Sold2022LADY'S PLATINUM SAPPHIRE AND DIAMOND RING W/AJI CERTIFICATION.Lady's platinum and diamond ring consisting of 1 oval mixed cut blue sapphire measuring 12.2x9.5x4.9mm weighing 4.95cts (stamped) and 2 straight baguette cut diamonds with a total weight of 0.48cts (sSee 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
Sold2018Vtg LADIES PLATINUM PLUM SAPPHIRE DIAMOND RINGExquisite ladies vintage estate ring crafted of platinum featuring a center large cabochon cut plum sapphire with halo design set with baguette and round cut genuine diamonds. Marked "10% IRID PLAT".See Sold Price
Sold2021Platinum Star Sapphire Cabochon Diamond RingPlatinum ring, with center 11.3 x 9.7 x 9.5mm star sapphire cabochon, surrounded with approx. 0.12ctw in diamonds. Ring size - 5.5, ring top - 12mm wide. Weight - 7.3 grams.See Sold Price
Sold20151950s Platinum Star Sapphire Diamond Cocktail RingStar sapphire measures 12.5mm x 10.3mm. Ring size 4. Marked Plat, weighs 8.4 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated othSee Sold Price
Sold2017A Lady's Platinum Sapphire and Diamond RingPlatinum ring featuring cushion cut bright blue sapphire weighing approx .80 ct. and side diamond accents, sz 5, 3 grams twSee Sold Price
Sold2022Platinum Sapphire and Diamond RingPlatinum Sapphire and Diamond RingAntique ladies platinum Sapphire and Diamond ring with one round blue sapphire weighing 1.50 carats, very good color with one Belgium cut diamond weighing 1.0 carat sSee Sold Price
Sold2018Platinum sapphire and diamond ringLadies platinum sapphire and diamond ring featuring a prong set oval cut very slightly grayish violetish blue sapphire weighing approx. 2.31ct.. accented with a stylized double halo of prong set bagueSee Sold Price
Sold2020Platinum 19.5 CTTW Star Sapphire Diamond PendantAntique ladies platinum star sapphire and diamond pendant. Features central cabochon star sapphire with an estimated weight of approximately 15 carats. Medium blue translucent body surrounded by haloSee Sold Price
Sold2021Platinum sapphire and diamond ringLadies platinum sapphire and diamond ring featuring a prong set rectangular step cut sapphire weighing approx. 1.42ct.. Surrounded by a floral frame of prong set round brilliant cut diamonds weighingSee Sold Price
Sold2022Platinum 5.31 CTW Star Sapphire & Diamond RingRef:2022904080 Gold Content:Platinum For people:Women Total Item Weight :6.99grams Ring Size:7.25US Main Stone:Star Sapphire Number of stones:1 Shape:Oval Carat Total Wt:4.38ct Color:Purple Cut GradeSee 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
Sold2024Platinum 8.45ct Star Sapphire Cabochon Diamond RingMetal : Platinum Designer : Not Signed Gemstone : Star sapphire cabochon 8.45ct, Diamonds 0.58ctw. Measurements : Ring size 6.5, top is 11.5mm wide. Marked: : pt900, 058, 8.45.See Sold Price
6 days LeftRiverside GalleriesPlatinum Setting with 3.17ct Star Sapphire and 0.21ct Diamond Ladies Ring$50
2 days LeftRiverside GalleriesPlatinum Setting with 14.39ct Star Sapphire and 0.37ct Diamond Ladies Ring$50
6 days LeftBidhausPlatinum Star Sapphire and Diamond Ring with 40.00 Ct. Sapphire and 10.00 Ct. Diamonds$10
3 days LeftSeized Assets Auctioneers1.87 ctw Blue Sapphire and 0.54 ctw Diamond Platinum Ring (GIA CERTIFIED)$1
5 days LeftSeized Assets Auctioneers1.90 ctw Pink Sapphire and 0.31 ctw Diamond Platinum Ring (GIA CERTIFIED)$1
Oct 23Miami Auction Gallery1.90ct Pink Sapphire and 0.31ctw Diamond Platinum Ring (GIA CERTIFIED)$1,700
Oct 23Miami Auction Gallery1.87ct Blue Sapphire and 0.54ctw Diamond Platinum Ring (GIA CERTIFIED)$2,000
Oct 20Miami Auctions & Appraisals LLC 0.34ct Diamond and 0.69ctw Blue Sapphire Platinum Ring (0.94ctw Diamonds)$1,575