Platinum Diamond Brooches

Platinum Diamond Brooch Diamond: 2.9ct Weight: 23.8 grams Measurement: 5.2 x 5.7cm

Art Deco Platinum Diamond Brooch Pin Mounted with approximately 2.32 Carats of near-colorless natural Diamonds as well as Blue mixed cut Sapphires in Platinum.

Vintage Bailey Banks & Biddle Ruby Platinum Diamond Brooch Marked: BBB 83229 Approximate Dimensions: 4.12 cm (Diameter) 15.2 grams in weight

Platinum Diamond Brooch Pendant, adorned with 16 marquise brilliant cut diamonds, 26 baguette diamonds and 15 round brilliant cut diamonds weighing a combined total of approx. 7.55 c...

Platinum Diamond Brooch / Pin / Pendant, featuring 78 round brilliant cut diamonds, 16 channel set baguette diamonds, 5 marquise brilliant cut diamonds and 4 pear shape diamonds, wei...

Estate Art Deco 18K Gold and Platinum Diamond Brooch - VHK#604a Item Details: Metal Type: 18K Yellow Gold and Platinum [Hallmarked, and Tested] Weight: 7.1 grams Diamond Details: ....

Art Deco 1920s Cartier Platinum Diamond Brooch An elegant Art Deco brooch by Cartier, circa 1920s, finely crafted in platinum and set throughout with old European-cut diamonds.

Antique platinum and diamond brooch. Tests 91% platinum using an XRF metals analyzer.

With a total of approximately 7.69ct of diamonds, set in platinum, the brooch reflects luxury and sophistication.

An elegant Belle Époque diamond brooch by Cartier, composed of old European and rose-cut diamonds in a finely pierced platinum openwork plaque.

An impressive antique Art Deco brooch in platinum, set throughout with old European cut diamonds in a bold, symmetrical openwork design.

Set in platinum, the brooch showcases a dramatic swirling design encrusted with a dazzling array of diamonds.

Antique Art Deco platinum and diamond brooch. It tests platinum weighs 6.8 grams.

Evoke the glamour of the Edwardian era with our exquisite Antique Platinum and 14kt Filigree Pin. Adorned with a stunning .07ct Old European Cut Round Diamond, this timeless piece ex...

Stunning Art Déco plaque brooch in Paltinum. Centre stone weighing 1.60 ct, J color, si clarity, flanked by 18 Diamond baguettes and 190 brilliant cut diamonds of ca. 10 ct, Wesselto...

Platinum diamond brooch featuring 5.15ct of baguettes and round diamonds

Antique Art Deco Brooch in a platinum setting with diamonds. The body of the brooch tests platinum, the pin is 18k yellow gold.

Stunning brooch, made by hand in platinum with old cut diamonds VS clarity and F color.

A fine antique Art Deco brooch. In platinum. With a central set Old European cut 0.68 ct± diamond (color H-I-J, clarity: SI1) surrounded by 54 Old European cut diamonds (3.25± Ctw,...

An exceptional Art Deco platinum and diamond brooch watch from the 1920s, masterfully designed as an elegant floral basket motif framed within an elongated oval surround.

Stylish elegant clip made of platinum and set with round brilliant cut and baguette cut diamonds (F-G color, VS1 clarity, 2.75 carats total). Measurements: 1 1/4" x 3/4" (3.5 x 2 cen...

Early 20th-Century Edwardian era Ruby, Sapphire, Diamond & Pearl Brooch Platinum-Set — In Richard Ogden Case A beautifully executed early 20th-century gem-set brooch, crafted in...

Expertly fashioned in platinum, the brooch features 90 various-cut natural diamonds totaling approximately 2.00 carats.

A vintage diamond brooch dating to the 1930s, crafted in platinum.

This antique Rene Boivin platinum and diamond lily-of-the-valley brooch, dating to the 1880s, captures the natural inspiration that defined early French jewelry design.

A graceful expression of mid-century elegance, this exquisite diamond brooch captures movement, light, and timeless sophistication in one sculptural design.

An outstanding 1940s brooch of French origin, masterfully crafted in platinum with French assay marks.

*Motivated to Sell – Please make a Fair Offer* Total Carat Weight: 1.55 Diamond Clarity Grade:VS Type:Brooch Antique:Yes Main Stone Color:White/Colorless Vintage:Yes Main Stone:Diamo...

Vintage Brooch pin Platinum approx 12.90 grams Natural old cut Diamonds approx 8-10 carat the center diamonds are approx 5.0mm and 5.5mm Diamonds qualities approx G-H-SI-VS2 Circa ...

A striking Art Deco platinum and diamond brooch, featuring black onyx and ruby; circa 1920s.

A stunning statement of vintage elegance, this estate diamond brooch dates back to the 1970s and is masterfully crafted in a combination of platinum and 18K yellow gold.

The clever incorporation of a hidden bail offers versatile wearing options, allowing this stunning piece to be worn as either a brooch or pendant. The platinum setting provides the p...

An exquisite expression of Art Deco design, this platinum and diamond brooch captures the architectural elegance and bold geometry of the 1920s.

A striking example of Cartier’s Art Deco mastery, this platinum brooch showcases a dynamic geometric composition set throughout with shimmering old-cut diamonds.

A striking expression of Mid-Century Modern design, this elegant platinum diamond brooch embodies the sculptural sophistication that defined the finest jewelry of the 1950s.

set an impressive Art Deco platinum diamonds brooch in geometrical desighn. compressive two symantric panels. set with round and bugget brilliant cut diamonds.

An elegant platinum diamond brooch designed as a stylised leaf spray, set with marquise, baguette and round brilliant-cut diamonds.

A striking mid-20th century platinum diamond brooch designed in a sculptural swirl motif, set with a brilliant combination of 52 marquise- and baguette-cut diamonds and two round bri...

Beautifully hand crafted Platinum Diamond Brooch/Pendant combines classic Edwardian style with the symmetry of Art Deco.

Platinum Antique Vintage Estate Diamond Large Pin Brooch.

An exquisite early 20th-century platinum diamond brooch crafted in the elegant garland style characteristic of the Belle Époque and Edwardian era.

Very decorative openwork brooch mounted in fine Platinum and set 7 old European round cut Diamonds weighing approximately 2.50 ct.

Elevate your style extravagantly with this Platinum Diamond brooch pendant. The platinum setting features an old European cut diamond in the center and an estimated 7 carats of Europ...

Gender: Ladies Metal Type: Platinum Length: 2.00 inches Width: 17.95mm tapering to 4.20mm Weight: 4.79 grams Ladies filigreed vintage 900 platinum diamond brooch.

An Edwardian diamond, platinum and yellow gold brooch, comprising five old European cut diamonds, set in platinum, to an 18 karat yellow gold bar brooch, with 14 karat yellow gold pi...

A stunning, fine and impressive antique Art Deco 2.13 carat diamond and platinum brooch; part of our diverse antique jewelry and estate jewelry collections.

A spectacular David Webb gold necklace, designed as a long sautoir necklace, crafted in 18k yellow gold with platinum and diamond accents. At the center hangs a detachable Maltese c...

A stunning, fine and impressive antique Edwardian 3.11 carat diamond and platinum floral brooch; part of our diverse antique diamond jewelry collections.

A stunning and fine antique 1930s platinum 4.02 carat diamond brooch; part of our diverse antique diamond jewelry collections.

A stunning, fine and impressive antique 3.35 carat diamond and platinum brooch - boxed; an addition to our collection of 1920s diamond brooches.

This platinum diamond brooch is further embellished with seventy-eight pavé set eight-cut diamonds, completing the paralleling angular border.

A stunning antique Art Deco French 5.44 carat diamond and platinum brooch; part of our diverse antique jewelry and estate jewelry collections.

A stunning, fine and impressive Art Deco 3.83 carat diamond and platinum brooch; part of our diverse antique Art Deco jewelry and estate jewelry collections.

This brooch is a stunning piece of fine jewelry crafted in platinum and encrusted with diamonds.

Platinum V shaped brooch, with round and baguette cut diamonds - approx. 6.00ctw in total.

Platinum and Diamond Brooch. The floral- and swag-form brooch centering a row of nine prong-set marquise-cut diamonds framed by rows of channel- and prong-set baguette- and round br...

Made from platinum, it is meticulously set with approximately 2.23ct of diamonds, including a 0.43ct center diamond, radiating a luxurious brilliance.

Diamond, Ruby, Platinum Brooch The floral brooch features full-cut diamonds weighing a total of approximately 2.95 carats, enhanced by baguette-cut diamonds weighing a total of appro...

A platinum and diamond brooch. Designed in a floral and foliate motif, set with approximately 45 baguette cut diamonds and 49 round brilliant cut diamonds.

Encircled by a halo of brilliant round-cut diamonds, the intricate platinum setting enhances the brooch's timeless elegance.