6.00ctw Blue Sapphire, 3.00ctw Diamond and Platinum Brooch

PLATINUM DIAMOND & BLUE SAPPHIRE BROOCH - 3" diameter circle platinum brooch, circled with diamonds & blue sapphires; Total weight 7.2g; Estimate: $500-$1000

Designed as a millegrained platinum bomb-form element, set with rose-cut and OMC diamonds later set with round faceted blue sapphire border and trefoil accents, saltwater cultured pearl and RBC diamon

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

A Sapphire & Diamond Brooch. Platinum bar mounting contains one checkerboard faceted blue sapphire with one oval faceted pink sapphire on either side. Throughout the brooch are eight bead set round di

DIAMOND & PLATINUM BOW BROOCH, C. 1920, L 2", T.W. 5 GR 5 gr. A small very delicate brooch in bowknot form. L 2". center diamond approx 10pts.Four blue sapphire baguettes. Myriad of diamonds assembled

Estate 14kt yellow gold and platinum brooch, Cartier, serial number 833, modeled as a Bluebonnet flower stem, with gold wire leaves, (eleven) blue sapphires, approx 3.60cttw, (twenty) diamonds, approx

IMPORTANT SAPPHIRE AND DIAMOND DOUBLE CLIP BROOCH, in platinum. Of part wave design, set with 3 sections of blue sapphires totalling approx. 6.84 ct. Flanked with multi-cut diamonds totalling approx.

Art deco 18k yellow Gold and Platinum on top, featuring three Old mine Diamonds weighing Approx. 0.60 carats. Along with Rose cut Diamonds and natural blue Sapphires weighing Approx. 1.00 carats. Broo

David Webb 17.20ctw Emerald & Blue Sapphire, 13.50ctw VS1-VS2/F-G Diamond Solid Platinum/18K Yellow Gold One of a Kind Convertible Brooch/Pendant (Comes W/$300,000 Appraisal) - This immaculately craft

This impressive signed platinum ”Maltese Cross” brooch with 18kt yellow gold accents features an approx. 5.27 ct. medium slightly violetish blue sapphire cabochon bezel set into the center

Stunningly crafted in both glowing yellow gold and the palest platinum, this openwork butterfly features icy diamonds, bright blue sapphires, rich red rubies and electric green demantoid garnets.

14K yellow gold platinum topped filigree brooch featuring Old European and Old Mine cut diamonds bead set into filigree with channel set dark blue French cut sapphire channel set down the center, 6 in

AN ART DECO SAPPHIRE AND DIAMOND BAR BROOCH in yellow gold and platinum, the tapering bar set with a floral cluster of diamonds to the centre, flanked by rows of graduated cushion cut blue sapphires,

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

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

Valentin Magro 6.00ctw Blue Sapphire & Solid 18K Yellow Gold Sunflower Brooch (1 of 3) - This exquisite statement piece from Valentin Magro was finely crafted of solid 18k yellow gold and has an brigh

3.00ct Blue Sapphire, 2.50ctw VS2-SI1/G-H Diamond & Solid Platinum Vintage Bracelet (Comes W/$10,500 Appraisal) - This lovely bracelet was finely crafted of solid platinum, and boasts a 3.00ct (approx

49.65ct Blue Sapphire Cabochon, 0.70ctw SI1-SI2/G-H Diamond Solid Platinum Ring - This lovely ring was finely crafted of solid platinum and boasts a massive 49.65ct (approximate) genuine blue sapphire

4.30ct Blue Sapphire, 1.00ctw SI1-SI2/G-H Diamond Solid Platinum Ring (Comes W/$10,500 Appraisal) - This gorgeous piece was finely crafted of solid platinum and has a simple yet elegant design perfect