Antique French 3.08 Carat Pink Topaz and 7.02 Carat Diamond and Platinum Brooch

An exceptional, fine and impressive antique French 2.06 carat diamond and platinum brooch; part of our antique jewelry and estate jewelry collections. This exceptional antique French brooch...

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...

A stunning, fine and impressive Art Deco 2.16 carat diamond and platinum brooch; part of our diverse antique jewelry and estate jewelry collections. This stunning, fine and impressive diamond brooch has been crafted in platinum and in the Art Deco style. The pierced decorated, subtly convex rectangular design is ornamented with a central feature 0.41ct Old European round cut diamond, within a square shaped platinum setting. The feature diamond is flanked on either side by two perpendicular collet set eight cut diamonds. The symmetrical millegrain bordered setting is further ornamented with a total of fifty-eight impressive eight cut diamonds. The stunning antique brooch secures to the reverse with a hinged pin and push fit fastening. This 1920s platinum diamond brooch...

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...

A magnificent, stunning and impressive vintage 21 carat diamond and platinum brooch; part of our diverse vintage jewellery and estate jewelry collections. This magnificent vintage diamond brooch has been crafted in platinum with an 18ct white gold fastening. The pierced decorated platinum frame has a curvilinear form, embellished with eight floral designs composed of individually claw set transitional modern brilliant round cut diamonds. The floral spray arrangement is ornamented with further diamonds, in a combination of marquise and transitional modern brilliant round cuts. The centre of the setting is embellished with a paralleling multi-stranded interlacing ribbon design accented with thirty-nine channel set baguette cut diamonds. The vintage 1960s diamond brooch...

A stunning, fine, and impressive antique elephant brooch featuring diamonds, sapphires, and a ruby; part of our antique jewelry and estate jewe...

Antique 2.5 Carat Diamond 18K Gold and Platinum Brooch circa 1930 Decorative, leaf-shaped curved diamond brooch, pierced and set with 66 diamonds totalling 2.5 ct, with the 5 larger...

Lovely Edwardian filigree cutout wide brooch designed in Platinum. The main diamond is Old European Cut and weighs approximately 0.57 carats. The rectangular brooch is covered in pav...

Platinum brooch with 5.80 carats of antique old cut diamonds. Platinum brooch setting is added later Circa 1980;'s Platinum tested positive for .950 purity. Dimensions - Weight: 20...

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...

Material: Platinum Diamond details: Approx. 4ctw of round cut Diamonds. Diamonds are G/H in color and VS in clarity Total Weight: 12.9g (8.3dwt) Measurements: 32mm x 7mm x 51mm Addit...

Item Details: Metal Type: Platinum Weight: 6.3 Grams Measurements: 1.4 inch length x 1 inch width Diamond Details: Carat: 1 Carat Total Weight Cut: Single Cut Diamonds Color: G Cl...