Antique 2.5 Carat Diamond 18k Gold and Platinum Brooch, circa 1930

Art Deco 5.2 carat diamond platinum bar brooch circa 1930 This decorative brooch is designed as an elongated pin and geometrically with wavy ribbons and openwork like a grid, set wi...

Retro 2.1 ct Diamond Ruby Leaf Brooch in 18K Gold and Platinum circa 1945 Very representative diamond brooch, naturalistically designed in the form o...

Art Deco 3.24 Carat Diamond Platinum Bar Brooch circa 1930 Very decorative 3.24 carat diamond bar brooch made of platinum in the form of an elongated pin, geometrically designed and...

Art Deco 3 Carat Diamond 18K White Gold Bar Brooch Pin, circa 1930 Impressive 3,78 inch (9.6 cm) long diamond bar brooch in boat shape, set in a line...

Gold Diamond and Enamel Stradivari Violin and Bow Brooch, circa 1930 Wonderful 18K gold and diamond brooch in the shape of a lifelike Stradivarius violin...

Vintage Boucheron 18K Gold Diamond Flower Brooch This representative diamond brooch is designed as a large blossom, the naturally crafted petals sculpted by hand from high-carat, fi...

A stunning antique 1930s 2.85 carat diamond and platinum brooch in the form of a bow; part of our diverse antique jewelry and estate jewelry collections. This stunning, fine and impressive antique diamond brooch has been crafted in platinum. The brooch has been modelled in the form of a three-dimensional tied ribbon bow. The two platinum settings composing the bow loops are embellished with forty-two pavé set transitional modern brilliant round cut diamonds, in addition to a further six diamonds to the interior. The cut tails of the bow are ornamented with a further forty-three pavé set transitional modern brilliant round cut diamonds, paralleling the flowing nature of the ribbon. Both the bow loops and tails settings incorporate scalloped pierced decoration, enhancing the texture of the article. The bow's knot features six transitional modern brilliant round cut diamonds, completing the design. The brooch secures to the reverse with a hinged pin and clasp. This stunning antique bow brooch is hallmarked to the reverse with the mark for platinum (PLAT). This antique diamond bow brooch...

This is an extraordinary Diamond Platinum Tiffany & Co. Edwardian - Art Deco Brooch Pin with approximately 2.5 Carats of magnificent Old Mine Cut Tiffany Diamonds set in Platinum in an open work scroll and leaf motif design of the highest quality. The antique Tiffany Diamonds are extraordinary. They are brilliantly white and clean. There are 30 Old Mine Cut Diamonds set throughout the brooch. In the center is a very rare pyramidal square fancy cut diamond of exceptional quality. The diamond is brilliantly white and very clean and the cut is absolutely magnificent. The diamonds are set in Platinum in a gorgeous open work design with knife edge designs leading to the two circular terminals. The terminals have elegant leaf and scroll form motifs set with diamonds in an arched design with milgrain beaded borders. The Tiffany Brooch is one of the most beautiful Edwardian jewels we have seen. The stunning design is timeless. The use of Platinum allowed the Tiffany jewelers...

This gorgeous 1930's Art Deco diamond and pearl bar brooch is set in an 18 karat gold platinum frame. The brooch is embellished with twelve clear round cultured pearls, surrounded by...

David Webb brooch finely crafted in 18 karat yellow gold in a flower motif design featuring round brilliant cut diamonds on top of platinum sections. The c...

A stunning, fine and impressive, rare antique 11.32 carat rock crystal, 0.59 carat diamond and 0.52 carat sapphire, 18 karat yellow gold and platinum brooch; part of our antique jewe...

A stunning antique 1900s 1.84 carat diamond and platinum brooch; part of our diverse antique jewelry and estate jewelry collections. This stunning, fine and impressive diamond brooc...