Sold2023Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds 1.14ctw VS2-H. MEASUREMENTS: Ring size 6 1/4, center will fit approx. 4.50ct stone. MARKED: Maker's logo mark, PT950, 79204. WEIGHT: 11.9 grams. Comes with copSee Sold Price
Sold2023Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.30ctw. MEASUREMENTS: Ring size 7 1/2, center of the ring will, keep approx. 9mm x 8mm stone. MARKED: Maker's logo mark, Pt950, 73172. WEIGHT: 6.5 graSee Sold Price
Sold2021Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.18ctw. Center of the ring will keep approx. 7 - 7.5mm stone. MEASUREMENTS: Ring size 4 1/4, ring shank is 1.7mm wide. MARKED: Maker's Symbol, PT. WEISee Sold Price
Sold2021Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.12ctw. Center of the ring will keep approx. 5.5mm x 6mm stone. MEASUREMENTS: Ring size 6 1/4, ring shank is 2.8mm wide. MARKED: Maker's mark PT. WEIGSee Sold Price
Sold2022Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.24ctw. Center of the ring will keep approx. 3.5mm -3mm stone. MEASUREMENTS: Ring size 7 3/4. MARKED: Maker's mark PT. WEIGTH: 4.2 grams.Gemstones havSee Sold Price
Sold2022Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.12ctw. Center of the ring will keep approx. 5.2mm x 5mm stone. MEASUREMENTS: Ring size 4 1/4. MARKED: Maker's mark PT. WEIGHT: 4.2 grams.Gemstones haSee Sold Price
Sold2022Blue Nile Platinum Diamond Engagement Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.12ctw. Center of the ring will keep approx. 5mm x 4.5mm stone. MEASUREMENTS: Ring size 6,ring top is 7.8mm wide. MARKED: Maker's mark BL, PT950. WEIGSee Sold Price
Sold2022Blue Nile Platinum Diamond Band RingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.14ctw. MEASUREMENTS: Ring size 4 1/4, ring band is 1.7mm wide. MARKED: Maker's mark, Plat. WEIGHT: 2 grams. Comes with Appraisal report #608682. RetaSee Sold Price
Sold2020Blue Nile Platinum Diamond Band RingMETAL: Platinum. GEMSTONES: diamonds approx. 18ctw. MEASUREMENTS: Ring size 6, ring band is 1.8mm wide. MARKED: Maker's mark PT900. WEIGHT: 3.5 grams.Gemstones have not been graded for color and cSee Sold Price
Sold2022Blue Nile Platinum Diamond Engagement Ring SettingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.10ctw. Center of the ring will keep approx. 4.8mm x 4mm stone. MEASUREMENTS: Ring size 8 1/2. WEIGHT: 4 grams.Gemstones have not been graded for color anSee Sold Price
Sold2023Blue Nile Platinum Engagement Ring MountingMETAL: Platinum. MEASUREMENTS: Ring size 5 3/4, center will fit approx. 10x7.5mm stone. MARKED: Maker's Logo mark, Plat. WEIGHT: 4.1 grams.Gemstones have not been graded for color and clarity ,andSee Sold Price
Sold2021Blue Nile Platinum Diamond Eternity Band RingMETAL: Platinum. GEMSTONES: Diamonds approx. 2.83ctw. VS/H. MEASUREMENTS: Ring size 4 3/4. ring band is 3.5mm wide. MARKED: Pt950 Maker's mark. WEIGHT: 5 grams. Comes with copy of appraisal. RetaiSee 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
Sold2020VINTAGE PLATINUM AND GEMSTONE COCKTAIL RINGVINTAGE PLATINUM AND GEMSTONE COCKTAIL RING ~ 4.6 GRAMS TW, UNSIGNED, SIZE 8- 8.5. VINTAGE MOUNTING FT. SMALL MELEE SIZE DIAMONDS ON SHANK, BLUE GEMSTONE BAGUETTES, AND A FACETED ROUND BLUE TOPAZ GEMSSee Sold Price
Sold2017Platinum Diamond Ring Mounting Loose GIA 8.10ct OvalMETAL: platinum. GEMSTONES: diamonds-approx. 2.20-2.30ctw. Oval modified brilliant cut sapphire-8.10ct, measurements-14.06mm x 11.12mm x 6.44mm. Stone is chipped on girdle. Original GIA Report #518106See Sold Price
Sold2016Mid Century Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds-approx.1.50ctw. MEASUREMENTS: ring size 5.25. Ring top is 21mm in diameter. Ring center will fit approx. 6.7mm round stone. TESTED: platinum. WEIGHT: 9.7 grams. GeSee Sold Price
Sold2016Edwardian Platinum Diamond Ring MountingDomestic: Free Shipping Item: Edwardian Handmade Estate Platinum Diamond Ring Mounting 42 brilliant cut diamonds, 0.60 ctw Color/Clarity: H color, SI clarity Ring Size: 7.25 Ring Weight: 4.2 gramsSee Sold Price
Sold20161950s Platinum Diamond Ring Mounting SettingMETAL: platinum. MEASUREMENTS: ring size 8 (shank is bent and not perfectly round) ring top measures 18mm x 15mm, center stone will fit approx. 9mm in diameter stone. GEMSTONES: baguette diamonds .MARSee Sold Price
Sold2021Mid Century Platinum Diamond Ring MountingMETAL: Platinum. GEMSTONES: Two baguette diamonds (one damaged/chipped). Center of the ring fit approx. 11mm x 10mm stone. MEASUREMENTS: Ring size 5 3/4, ring top is 11.5mm wide. TESTED: Plat. WEIGHT:See Sold Price
Sold2018Art Deco Filigree Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: rose cut diamonds. MEASUREMENTS: ring size 8.5. Ring center will keep approx. 8mm stone. TESTED: platinum. WEIGHT: 4.8 grams. Gemstones have not been graded for color and cSee Sold Price
Sold2024Mid Century Platinum Diamond Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.50ctw. MEASUREMENTS: Ring size 3 3/4, center will fit approx. 10mm in diameter stone. TESTED: Plat. WEIGHT: 5.9 grams.Gemstones have not been graded forSee Sold Price
Sold2017Antique Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: ring size 6.75. Ring top is 14.5mm in diameter. Center of the ring will keep approx. 10mm round stone. Ring has sign MARINA in Gothic letters. TESTESee Sold Price
Sold2018Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds-approx. 0.45ctw. MEASUREMENTS: ring size 6.25. Ring top is 16.5mm at widest point. center will fit to approx. 17mm stone. MARKED: Pt900 7.60 0.45. WEIGHT: 8.6 gramSee Sold Price
Sold2017Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: diamonds. MEASUREMENTS: Ring is a size 6, center will fit approximately 10.7mm X 7.5mm stone. MARKED: tested plat. WEIGHT: 4.7 grams. Gemstones have not been graded for colSee Sold Price
May 31Miami Auctions & Appraisals LLC 9.89 carats No-Heat Ceylon GIA Sapphire Fancy Diamond three stone Platinum Ring$28,500
May 28Miami Auction GalleryRARE KASHMIR GIA NO HEAT NATURAL 3.97CTS BLUE SAPPHIRE DIAMOND PLATINUM RING$101,000
May 31Miami Auctions & Appraisals LLC Ceylon No Heat 16.17 carats Blue Sapphire Diamond Platinum Cocktail Ring$61,000
Jun 23Modern JewelryCARTIER 0.28 Carat Baguette Shape H VS2 Diamond Platinum Semi Mounting Ring$2,750
Jun 09Austin Auction GalleryESTATE CUSTOM PLATINUM & GIA 3.31CT DIAMOND & 6.25CTTW ACCENT DIAMONDS RING$20,000
2 days LeftJasper52AGL Certified 9.23ct Natural No Heat Sri Lanka Sapphire Diamond Ring Platinum+$32,000
May 31Miami Auctions & Appraisals LLC Kashmir AGL GIA No Heat Sapphire 2.53cts Diamond Platinum Ring$76,500