Sold2016A mid 20th century platinum diamond cluster ring. TheA mid 20th century platinum diamond cluster ring. The old-cut diamond cluster, with pierced gallery and plain band. Estimated total diamond weight 1ct, I-J colour, SI clarity. French assay marks. RingSee Sold Price
Sold2015A mid 20th century platinum, sapphire and diamondA mid 20th century platinum, sapphire and diamond cluster ring. The rectangular-shape sapphire, within a circular-cut diamond scalloped surround, to the openwork gallery. Estimated total diamond weighSee Sold Price
Sold2015A mid 20th century gold and platinum diamond floralA mid 20th century gold and platinum diamond cluster ring. The circular-cut diamonds, to the tapered band. Estimated total diamond weight 0.35ct. Weight 2.5gms.See Sold Price
Sold2016A mid 20th century platinum and 18ct gold diamondA mid 20th century platinum and 18ct gold diamond cluster ring. The single-cut diamond floral cluster, with single-cut diamond sides, to the plain band. Estimated total diamond weight 0.15ct. Weight 2See Sold Price
Sold2020Mid Century Platinum Diamond Opal RingBlack opal surrounded by baguette and brilliant cut diamonds in a floral motif. Opal 6.24 carats, diamonds 1.79 ctw. Ring measures 7/8 x 1 x 1 1/4 T. Weight 14g. Excellent condition.See 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
Sold2016A mid 20th century 18ct gold and platinum, opal andA mid 20th century 18ct gold and platinum, opal and diamond cluster ring. The opal cabochon, within a single-cut diamond surround. Estimated total diamond weight 0.10ct. Ring size O. Weight 2.6gms. OvSee Sold Price
Sold2019A mid 20th century 18ct gold and platinum ruby andA mid 20th century 18ct gold and platinum ruby and diamond cluster ring. The circular-shape ruby, with single-cut diamond surround and tapered shoulders. Estimated total diamond weight 0.15ct. StampedSee Sold Price
Sold2016A mid 20th century 18ct gold and platinum sapphire andA mid 20th century sapphire and diamond cluster ring. The rectangular-shape sapphire, within an old-cut diamond surround, to the grooved shoulders and plain band. Estimated total diamond weight 0.35ctSee Sold Price
Sold2022RUBY AND DIAMOND CLUSTER RING, MID 20TH CENTURYRUBY AND DIAMOND CLUSTER RING, MID 20TH CENTURY The oval-cut ruby, weighing 2.51 carats, within a surround of brilliant-cut diamonds, between baguette-cut diamond-set shoulders, ring size N Footnotes:See Sold Price
Sold2022A MID 20TH CENTURY SAPPHIRE AND DIAMOND OVAL CLUSTER PANEL RINGA MID 20TH CENTURY SAPPHIRE AND DIAMOND OVAL CLUSTER PANEL RINGThe oval cut sapphire within a surround of old European cut diamonds, approximately 0.48 carats total, to a pierced geometric gallerySizeSee Sold Price
Sold2022Vintage platinum diamond & amethyst ringVintage from the 1950s Size: 7 US Materials: Platinum Gemstone: Amethyst Gem color: Purple Style: Mid-century Description Solid platinum Center genuine oval shaped amethyst 6 carats flanked by .20ctSee Sold Price
Sold2022A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut yellow sapphire of 2.50A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut yellow sapphire of 2.50 carats in a cluster of round brilliant cut diamonds, further diamonds accenting the shoulders all tSee 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
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
Sold2020Mid Century Platinum Diamond RingMETAL: Platinum. GEMSTONES: Center diamond approx. 1.00-1.10ct (imperfect) , surrounding diamonds approx. 0.47ctw. MEASUREMENTS: Ring size 5 1/2, ring top 16mm wide. MARKED: 10%Irid Plat. WEIGHT: 8.8See Sold Price
Sold2018Mid Century Platinum Diamond RingMETAL: Platinum. MEASUREMENTS: Ring size - 7.5, ring top - 13mm x 20mm. GEMSTONES: Diamonds approx. 1.40ctw. MARKED: 10% irid. plat. WEIGHT: 5.5 grams.Gemstones have not been graded for color and clarSee 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
Sold2024Mid Century Platinum Diamond RingMETAL: Platinum. GEMSTONES: Diamonds approx. 1.00ctw. MEASUREMENTS: Ring size 8, top is 11.5mm. TESTED: Plat. WEIGHT: 7.4 grams.Gemstones have not been graded for color and clarity, and tested for claSee Sold Price
Sold2018Mid Century Platinum Diamond RingMETAL: platinum. GEMSTONES: diamonds-approx. 0.80ctw. MEASUREMENTS: ring size 6.5. Ring top is 10mm at widest point. MARKED: 10% Irid Pt. WEIGHT: 6.2 grams.Gemstones have not been graded for color andSee Sold Price
Sold2022Mid Century Platinum Diamond Ring MountingMETAL: Platinum. GEMSTONES: Diamonds approx. 0.65ctw. Center of the ring will keep approx. 9mm in diameter stone. Prongs are missing. MEASUREMENTS: Ring size 5 1/2, ring top is 14mm wide. TESTED: PlatSee Sold Price
Sold2016Mid Century Platinum Diamond Ring MountingMETAL: platinum. GEMSTONES: baguette cut diamonds - approx. 0.15-0.20ct each. MEASUREMENTS: ring size 4.75, ring center will fit to 10-10.5mm stone. MARKED: hand made, tested platinum. WEIGHT: 4.9 graSee Sold Price
Sold2021Mid Century Platinum Diamond Ring SettingMETAL: Platinum. MEASUREMENTS: Ring size - 4.5, ring top - 16mm wide. Center will fit approx. 8.8mm stone. Shank is bent. GEMSTONES: Diamonds in the setting. MARKED: Engraved initials " A to M&quSee Sold Price
Sold2016Mid Century Platinum Diamond Ring MountingRing mounting will fit approx. 9mm round stone. Ring size 4.5. Tested platinum. Inside shank engraved "Claude, 31-5-54". Weight - 4.3 grams. Gemstones have not been graded for color and clarSee Sold Price
2 days LeftKinghams AuctioneersA mid 20th century 18ct gold and platinum diamond single-stone ring£80
2 days LeftKinghams AuctioneersA mid 20th century 18ct gold and platinum, diamond five-stone ring£400
2 days LeftKinghams AuctioneersA mid 20th century 18ct gold and platinum sapphire cluster dress ring£120