White Diamond Brooches

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...

Oscar Heyman platinum American Flag lapel pin contains rubies (4.87cts), sapphires (2.40cts) and diamonds (0.52cts). It is stamped with the makers mark, IRID PLAT, and a unique seria...

This Oscar Heyman 18kt yellow gold brooch contains 2.55cts of calibré rubies and 3.95cts round diamonds (F-G/VS+). The rubies are cut by hand in Oscar Heyman's Madison Avenue workshop by the lapidary. The diamonds are bead set. It is stamped with the makers mark, 18K, and serial number 74869. This brooch measures 49mm x 30mm x 11mm. It has a standard rollover safety clasp. It is light enough to wear on a shirt without pulling Bows are a timeless ornament and this gemstone-encrusted version even more so! Oscar Heyman was founded in 1912 and became known as the 'Jewelers' Jeweler'® for creating pieces for Van Cleef & Arpels, Cartier, and Tiffany & Co. Oscar Heyman jewelry...

This estate Oscar Heyman platinum brooch contains 121 old European cut diamonds (~9cts) and 74 baguette and square sapphires (~16cts). Center diamond measures 6mm; quality is not indicated. The dimensions are 2'' L x 0.75'' W. Trombone...

Oscar Heyman 18kt yellow gold and platinum "Two Kitty" brooch contains a 189 round diamonds weighing 3.14cts (F-G/VS+) and 4 round emeralds as the eyes. It is stamped with the makers...

Oscar Heyman 18kt yellow gold and platinum brooch contains 17 round diamond weighing 1.11cts (F-G/VS+). It is stamped with the makers mark, 18K PLAT, and serial number 200727. Broo...

Oscar Heyman platinum Union Jack flag brooch contains rubies (2.63cts), sapphires (1.59cts) and diamonds (0.33cts). It is stamped with the makers mark, IRID PLAT, and serial number 2...

This stunning and very particular original Art Deco bar pin is made in 14 karat yellow gold, the elegant geometric design is composed of sparkling diamond...

Oscar Heyman platinum bow brooch contains 39 round diamonds weighing 3.56cts (F-G/VS+). It is stamped with the makers mark, PLAT, and serial numb...

A magnificent Art Deco bow brooch made of platinum and many diamonds. The brooch dates from the 1930s and has a beautiful openwork and leave design whi...

Oscar Heyman 18k yellow gold 'prowling lion' brooch contains a 0.01ct round emerald eye, 22 round diamonds (0.18ct, F-G/VS+), and 154 round fancy yellow diamonds (4.73ct). It is sta...

Art nouveau enamel Orchid pendant-brooch. An exceptional, oversized and three-dimensional pendant brooch, created in America during the Edwardian and the Art Nouveau periods, back i...