A PLATINUM, DIAMOND, AND SYNTHETIC SAPPHIRE RING.

containing three old European cut diamonds [H-J/VS] weighing approximately 0.25 carats total; 16 single-cut diamonds [H-J/VS] weighing approximately 0.40 carats total; and eight caliber-cut synthetic

ANTIQUE PLATINUM-ON-YELLOW GOLD, DIAMOND AND SYNTHETIC SAPPHIRE RING. Cushion shape rectangular synthetic sapphire weighing 3.50-4.00 ct. surrounded by 14 old mine cut diamonds together weighing appr

A Yellow Gold, Platinum, Diamond and Synthetic Sapphire Toi et Moi Ring, containing one old European cut round diamond weighing approximately 1.35 carats and one round mixed cut synthetic sapphire mea

Diamond, synthetic sapphire and platinum ring Centering (1) old European-cut diamond, weighing approximately 0.50 ct., accented by (10) old European-cut diamonds, weighing a total of approximately 0.1

Size 5 1/4. 18K White Gold and Platinum 2.47ct Old European cut Diamond and synthetic sapphire ring, circa 1920's. Diamond measures 8.4 x 8.4 x5.22mm. Clarity SI2; Color H. Copy of Appraisal is availa

Diamond, synthetic sapphire and platinum Masonic ring Designed as a Masonic five point star, accented by (14) full-cut diamonds, weighing a total of approximately 0.30 ct., enhanced by triangle and Fr

(Lot of 2) Sapphire, diamond and platinum rings Including 1) cushion-cut sapphire, synthetic sapphire, diamond and platinum ring, size 5 (several stones are missing); together with 1) round-cut sapphi

Sapphire (synthetic), Diamond and Platinum Ring. Sapphire cabochon 11.2mm x 9.2mm , surrounded by 26 round mine-cut diamonds totaling approx. 1 ct. (ETER2304){PR} Measurements: Size 5.5

(Lot of 3) Diamond, synthetic sapphire, gold and platinum rings Including 1) diamond, synthetic sapphire, platinum-topped and 18k yellow gold ring, size 5.25; 1) diamond, synthetic sapphire and 18k wh

METAL: 18k Gold/Platinum. GEMSTONES: Diamonds approx. 1.44ctw. Synthetic Sapphire (tested RI=1.76-1.77. Stone is chipped/abraded)). MEASUREMENTS: Ring size 7 1/4, ring top is 17.4mm wide. TESTED: 18k,

Two old European cut diamonds approximately .25 carats each, with sixteen accent diamonds and four small triangle cut synthetic sapphires, the setting marked platinum, ring size 7, weight 6 grams. Pro

A platinum setting with a large step-cut synthetic blue sapphire of approx. 19mm x 13mm, flanked by 2 baguette-cut diamonds. Ring size 6-1/4. 6.6 dwt.

SYNTHETIC SAPPHIRE AND DIAMOND RING Containing one octagonal mixed cut synthetic sapphire measuring approximately 14.85 x 11.75 x 6.30 mm and 24 single cut diamonds. Mounted in platinum. Ring size 8.

Including one ring featuring twenty-one old European-cut diamonds weighing a total of approximately 1.25 cttw. set in a platinum mounting, size 6 1/4; together with a pair of matched rings, each featu

METAL: 18k Gold/ Platinum. MEASUREMENTS: Ring size - 5.75, ring top - 30mm x 20mm. GEMSTONES: Synthetic sapphire (RI tested 1.76-1.77) - 14mm x 9mm x 5.3mm, Diamonds - approx. 0.56ctw. TESTED: 18k/Pla

METAL: 18k Gold/ Platinum. MEASUREMENTS: Ring size - 10, ring top - 16mm x 15mm. GEMSTONES: Center synthetic sapphire (RI 1.76-1.77) Stone is chipped/abraded. Diamonds - approx. 0.50ctw. TESTED: 18k/P

This original Art Deco ring was handmade in 18k gold and platinum during the 1920´s. One cushion cut synthetic sapphire that weighs 3ctw approx. radiates from the center of this lovely piece. The c

Platinum "pt 900" band with diamonds and "18k" yellow gold accents, 9.8 grams, "18K" white gold ring with two diamonds and synthetic Sapphire Stone, Yellow Gold Band, 9.0 grams 18K

19 old European cut diamonds estimated total weight 0.85ct., H-J, SI, 10 synthetic blue sapphires, remnant of stamp "Platinum", size 7-1/2, 4.2 grams - Provenance: A Virginia Collector

Comprising three rings set with white or cognac OEC diamonds, weighing approx. .75 ct. TW, in pierced and millegrained filigree platinum or 18k white gold, two with synthetic sapphires, diamond melee,

1) 14K yellow gold ring, with an oval synthetic sapphire center with diamond surround, sz 8, and 2) Platinum, Art Deco ring with 3 French cut sapphires, sz 4.75

center four round brilliant and 14 round brilliant and single cut diamonds estimated total weight 0.88ct., H-J, SI, two synthetic blue sapphires, remnant of stamp "PLATINUM" and hand inscribed "12 29"

Platinum Topped Gold and Gem-Set Ringthe platinum rectangular filigree mount centering on a bezel set old European cut diamond with rose cut diamond melee and with synthetic sapphire accents, testing

center old European cut diamond estimated weight 0.90ct., I-K, SI, 30 old European and rose cut diamonds estimated total weight 0.80ct., J-L, SI, synthetic blue sapphires, shank and gallery wire teste