Blue topaz, synthetic sapphire, diamond and platinum

center round cut synthetic blue sapphire approx. 7.6mm, approx. 156 old European cut diamonds estimated total weight 3.50cts., H-J, VS to SI, tested platinum, 13/16 x 2-7/8 in., 11.3 gramsÿ - Provena

36 old European cut diamonds estimated total weight 3.25cts., H-J, VS to SI, French cut synthetic blue sapphires, tested platinum, 3/8 in. wide, 6-3/4 in. lg., 24.9 grams Provenance: Private Collectio

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

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"

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

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.

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

Natural blue stones add elegance to this piece, crafted in sterling silver for the look of white gold or platinum. Size - 6 1/4" wide at widest point Sterling silver 1/2 CT princess cut deep blue topa

14k gold blue topaz, sapphire with diamonds and a class ring, 10k gold garnet, synthetic ruby, and signet ring, 9 ct gold baby ring ring sizes 8 3/4 to 1 1/2, 17.4 dwt gross

Comprising four in 18k yellow gold include an oval faceted blue topaz with diamonds, gem bombe, pearl and sapphire "turban", or pearl cascade; Five in 14k yellow gold include a marquise cut sapphire,

Heavy Platinum Flame Fusion Blue Sapphire 1.65ctw Fine Diamond Statement Ring 15.8grams Description:The center stone is an early synthetic flame fusion blue sapphire, enhanced with 1.65 carats of extr

7.85ctw Blue Sapphire, 6.25ctw VS1-VS2/G-H Diamond & Solid Platinum Art Deco Cocktail Bracelet (Comes W/$58,000 Appraisal) - This stunning bracelet was finely crafted of solid platinum, and is embelli

14.25ctw Ceylon Blue Sapphire, 1.50ctw VS1-VS2/G-H Diamond & Solid Platinum 1" Earrings (Comes W/$12,500 Appraisal) - These beautiful earrings were finely crafted of solid platinum, and are decorated

Featured in this lot is this Montana corn blue sapphire, diamond, and platinum ring. The ring features a platinum split shoulder art deco design to the ring frame and face with an 'Orianne' hallmark a

Natural Periwinkle Blue Sapphire Diamond Platinum Ring

Tasaki 3.80ct Blue Sapphire, 0.45ctw VS2-SI1/G-H Diamond Solid Platinum Ring - This exquisite ring was made by Tasaki, and was finely crafted of solid platinum. The ring boasts a 3.80ct blue sapphire

2.70ctw Near Flawless Blue Sapphire, 1.00ctw VS1-VS2/G-H Diamond & Solid Platinum 15" Necklace - This gorgeous piece was finely crafted of solid platinum, and has a 1.25" suspended circular pendant wh

Blue topaz, sapphire, diamond, and 18k white gold ring, centering a 3.50ct checkerboard cut blue topaz, framed by 4ctw of round faceted blue sapphires, and .60ctw of full cut diamonds of F-G color and

6.1 GRAMS & .35 CTS DIAMOND

Andreoli CDC Certified 6.31 Carat Ceylon Blue Sapphire Diamond Platinum Ring. This ring features a 6.31 carat vivid blue cushion Ceylon blue sapphire certified by C. Dunaigre Consulting Switzerland su

14KT YELLOW GOLD MULTI-STONE SLIDE BRACELETComprised of 13 slides of various designs, set with blue topaz, sapphire, diamond, peridot, opal, ruby, amethyst, citrine, garnet, tsavorite, tourmaline and

vintage 14k yellow gold blue topaz sapphire diamond ring weight: 6.1 Grams & .35 Cts diamond Please note that this lot has a confidential reserve. When you leave a bid in advance of the auction, submi

22.70ct Blue Topaz, 3.75ctw Blue Sapphire, 0.25ctw Diamond and 18K White Gold Cocktail Ring Designed by Prince Lorenzo de Medici - This beautiful cocktail ring was designed by Prince Lorenzo de Medici