Platinum Diamond Circle Brooch

A timeless diamond open circle brooch fashioned out of 950 platinum and set with VVS-VS diamonds making this a fantastic piece to own.

A unique early Art Deco onyx, black enamel and diamond circle brooch, designed as an onyx circle, flanked by two diamond stylized leaf shaped motifs, decorated with black enamel and ...

A finely mounted platinum open circle brooch, set with graduating brilliant cut diamonds and calibre cut Ceylon sapphires, designed as eccentric circles, Millegrain set and of very b...

Platinum and 18 karat yellow gold open work leaf motif circle pin with approximately 12.75 carats of round brilliant cut diamonds, signed Oscar Heyman.

A fine quality brooch of the Art Deco period formed of 2 intertwined circles, each one set with small old mine cut diamonds and on the inside with matching bright calibre cut rubies.

Platinum Brooch with marquise and baguette diamonds and emeralds. It has 54 diamonds weighing approximately 2.70 carats total weight, 7 baguette diamonds weighing approximately .07 c...

Antique Edwardian platinum diamond and pearl circle brooch and pendant.

Antique Art Deco Palladium & Diamond Circle Brooch Circa 1920s Here is your chance to purchase a beautiful and highly collectible designer brooch.

Specifications: Main Stone: Round Diamonds Carat Total Weight: Approximately 1.40ctw Diamond Color: GH Diamond Clarity: VS2 Metal: Platinum Item’s Weight: 8.81 Gr

From the house of Cartier, an elegant diamond circle brooch. Fashioned in two platinum sections and boasting 30 brilliant diamonds weighing approximately 3.60 carats, this brooch e...

Emerald and Diamond Platinum Circle Brooch Circa 1950 Circular brooches score the highest marks in terms of classic and distinctive jewelry.

Art Deco diamond and blue stone platinum circle brooch circa 1925.

Mid century sapphire diamond and platinum circle brooch circa 1950. The design features contrasting courses of calibrated cut blue sapphires and round brilliant-cut diamonds, togethe...

Circa 1920-30s, platinum, American. Brilliant white diamonds set on a fluid ribbon and bow motif make this circle pin pop. Meticulously fabricated, the look is stylish, classic and ...

This extraordinary platinum circle brooch is set with 20 white/clean round brilliant-cut diamonds (I-J, VVS-SI) weighing in total 14.61 carats, surmounted by a bow set with smaller r...

Platinum, Diamond and Blue Topaz Circle Brooch This piece features 12 oval blue topaz stones and 12 round diamonds ap. .40 ct.

A stunning emerald and diamond wreath brooch/pendant. There is an estimated 1.00 carats of emerald cut emeralds and 6.50 carats of round and baguette cut diamonds of G color, VS cla...

Platinum Tiffany & Co. Diamond Brooch Pin from "Victoria" collection. With 21 round brilliant cut diamonds VS1 clarity G color Total weight approximately 1.24ct 4 marque shape dia...

Vintage Diamond Ruby Circle Brooch in Platinum. The sophisticated brooch has 16 round, bead set, brilliant cut diamonds and 16 square, step cut, channel set red rubies.

Edwardian Blue Sapphire and Rose-Cut Diamond Circle Brooch. A ribbon of blue sapphires and rose-cut diamonds mounted in platinum by Marcus & Co circa 1910.

Platinum 6.60 Carat Natural Round Diamond Circle Pin Brooch Metal: Platinum Weight: 9.06 grams Diamonds: 20 round natural diamonds approx. 6.60 CTW G-H VS Diameter: 35mm

1950's diamond bow pin handcrafted in platinum. The brooch features 21 round brilliant cut diamonds and 54 baguette cut diamonds weighing approximately 3.00 carat total weight. The d...

Platinum 3.00 Carat Natural Diamond Circle Pendant Brooch Pin Metal: Platinum Weight: 10 grams Diamonds: Approx. 3.00 carats natural round G-H VS round diamonds Diameter: 33mm Note...

Art Deco style brooch with Diamonds and Sapphires. The inner circle is decorated with a row of Sapphires, ribbon-like.

A vision of classic elegance, this prestigious brooch is a fascinating piece from Tiffany & Co. that is designed in a most refined fashion. The brooch is exquisitely crafted from pla...

Circular brooch is designed as an undulating wave motif Featuring prong set old European cut diamonds weighing approximately 2.65 carats - H to I color with VS clarity Waves are be...

Here we have a truly breathtaking vintage diamond wreath pin brooch crafted in solid platinum. The brooch features approximately 2.60 carats of round brilliant cut diamonds which are...

This breathtaking wreath brooch by Maurice Tishman was crafted in solid platinum & 14k white gold pin. The wreath is adorned with old single & transitional cut diamonds that alternat...

1920's Art Deco Diamond and Onyx Circle Brooch in Platinum Great For a Formal Occasion or a Casual Wear Fourteen Old Mine Cut Diamonds Weighing .45 Carats Approximately Thirty Fre...

This vintage Harry Winston circle brooch features 20 round brilliant cut diamonds totaling approximately 5.40 carats with E-F color and VS clarity, set in platinum.

Art Deco Platinum Sapphire and Diamond Circle Brooch Circa 1920's A Wonderful Rendition of a Classic Fifty One Old European and Single Cut Diamonds weighing 1.80 carats approximately...

This 1950s vintage open circle pin is beautifully crafted in platinum and showcases a classic scalloped design adorned with 18 round brilliant cut diamonds totaling approximately 3.5...

Vintage Baguette Diamond And Sapphires Circle Brooch. Diamond and sapphire circle pin. Beautiful quality lovely luster. Fastens with one single pin. Width 34mm.

This exquisite Edwardian antique brooch is crafted from 14-karat yellow gold and platinum, featuring intricate filigree detailing.

The stones form concentric circles, creating depth without heaviness. Contrast comes from shape and color rather than scale, resulting in a piece that's precise and perfectly detaile...

This estate brooch’s clean lines and classic elegance make it a luxury piece that will never go out of style. Set within a shimmering platinum setting, you’ll find round diamonds tot...

Here we have a truly marvelous Maurice Tishman circle pin brooch that is very well crafted from solid platinum.

Beautiful brooch pin crafted in platinum featuring 104 round brilliant cut, baguette and single cut diamonds weighing approximately 3.3 carats total, F-G color, VS clarity, and 3 eme...

Here we have a truly breathtaking vintage diamond wreath pin brooch or pendant crafted in solid platinum. The brooch features approximately 3.96 carats of fine quality diamonds in wh...

Beautiful Art Deco Sapphire and Diamond Platinum Circle Brooch securely Hand set with 15 French-cut Sapphires and 15 Diamonds, approx. 0.60tcw.

Add a touch of vintage charm to your jewelry collection with this stunning Tiffany & Co. Diamond Brooch Pin. The piece features a circle design with black enamel and art deco details...

Designed as a pierced circle brooch comprised of sapphires and diamonds Sapphires are square step cut and weigh approximately 1.60 carats total Transparent medium blue in color and c...

Here we have an absolutely breathtaking antique brooch that was crafted during the late art deco period from solid platinum.

Elegant Art Deco Platinum and Diamond Circle Brooch circa 1930s consisting of bead set European cut, round brilliant cut and baguette cut diamonds for approximate 4.25 carats total w...

Simple and elegant Edwardian diamond brooch. Craftsmanship circa 1900, this platinum old European cut diamond circle bow brooch has an estimated diamond weight of 1.50cts.

Circa 1920s signed Tiffany & Company, Platinum and Diamond Circle pin in original Tiffany Velvet Box. Diamond weight equals 1 Carat.

From the 1930's, this glamours Tiffany & Co Circle brooch. The platinum  brooch is set with 46 old European cut diamonds weighing approximately 4 carats.

The brooch is finely crafted in platinum with diamonds weighing approximaately total of 6.00 carat and sapphire weighing approximately total of 1.00 carat.

An open circular brooch, pavé set with round brilliant-cut diamonds, with a diamond bow set across the centre, set with round brilliant-cut and baguette-cut diamonds, mounted in plat...

This vintage platinum pin is adorned with 29 round diamonds and green onyx. The diamonds weigh 0.58 carats and graded G-H in color and VS in clarity. The pin measures 35.09mm in dia...

A stunning array of graduated round diamonds encircles this classic Art Deco-period brooch by the celebrated French firm Cartier. An exotic peacock borders one side, with its sparkli...

Step into the elegance of the Antique Edwardian Era with our Platinum Sapphire and Diamond Circle Bow Lapel Pin. This exquisite piece combines the sophistication of platinum with the...

The open work delicate leafy garland motif surrounds the outer edge of the platinum circle which is interrupted by eight stations for the bead set diamonds.

A Victorian diamond crescent and flower brooch in silver and gold, ca. 1880s. The crescent has a beautiful design with a flower attached in the centre, creating an aesthetic and sy...

Designer: Oscar Heyman Metal: Platinum Style: Art Deco Year Of Manufacture: Circa 1920s Item weight: 26.7 g Length: 7.25 inches Gemstone: Sapphire With 7 CT Round Brilliant Cut Diamo...

Antique La Belle Époque natural pearl and diamond pendant necklace in platinum and gold, Portuguese, circa 1900. This garland jewel of geometric, floral and foliate motifs is millegr...

Antique French Floral Design Platinum Diamond Tiara with Detachable Brooch This magnificent French tiara, crafted in luxurious platinum, is a masterpiece of elegance and refinement....

1992 18k yellow gold Panthere necklace by Cartier. Necklace is 16.75" long and 15mm wide. Marked on the clasp: Cartier 1992, 750, E73016. Weight - 92 grams.

A vintage sapphire and diamond convertible tiara necklace. An exceptional vintage sapphire and diamond convertible tiara and necklace set, in platinum, circa 1950. This beautifull...

Lovely Delicate Edwardian Amythest, Diamond and Pearl Brooch from the early 1900's. Unsigned but high quality American manufacture. Platinum topped gold with diamonds and natural pea...

A special piece made in Cartier's Paris workshops, a diamond studded gold evening purse. In excellent condition, this purse opens to reveal a mirror and more storage space than expec...

This exquisite vintage brooch from the 1960s is a true representation of timeless elegance. Crafted in luxurious 18k white gold, the piece showcases a breathtaking floral design ador...

Cartier Double Headed Lipstick Holder This accessory has two heads that can hold lipstick and 2 carved gemstones (ruby and sapphire) all set in 18k yellow gold. Signed Cartier Paris,...

Here we have a stunning antique brooch or pendant which was crafted in solid 14k yellow gold during the Victorian period. It features a gorgeous, approximately 1.0 carat, super fine ...

Beautiful, antique white gold diamond brooch as a bouquet of flowers with a bow. Set with a lot of old cut diamonds. Including certificate of authenticity and box.