Platinum Brooches
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Metal: Platinum
Gemstone: Opal
1960's Opal Diamond Ruby Platinum 18 Karat Gold Vintage Goose Bird Brooch
Located in Philadelphia, PA
Designed as a stylized goose in flight with an opal cabochon body
Abstractly shaped and measuring 12.0 x 18.0 mm - prong set
Translucent white body color with spectral play-of-color ...
Category
1960s Vintage Platinum Brooches
Materials
Diamond, Opal, Ruby, Gold, 18k Gold, Platinum
72.25 Carat Australian Boulder Opal Platinum & 18k Y Gold Ship-at-Sea Brooch
Located in Beverly Hills, CA
Picture a majestic brooch, a symphony of iridescence and elegance, crowned by a mesmerizing 72.25 carat boulder opal at its heart! This opal, like a miniature landscape of a ship at ...
Category
21st Century and Contemporary Platinum Brooches
Materials
Diamond, Opal, 18k Gold, Yellow Gold, Platinum
Vintage Opal, Ruby and Diamond Brooch, hallmarked 1967
Located in London, GB
This mesmerising brooch depicts a lively bouquet of flowers. Master craftsmanship is on display in the flowers and leaves of the piece crafted from iridescent opals. Are 0.10 carat r...
Category
1960s Unknown Vintage Platinum Brooches
Materials
Diamond, Opal, Ruby, 18k Gold, Platinum
An Early 20th Century Opal And Diamond Brooch
Located in London, GB
An early 20th century opal and diamond brooch, the oval cabochon-cut black opal, measuring approximately 1.8 x 1.2cm, to the centre of a rectangular rose-cut diamond-set surround wit...
Category
1920s British Art Deco Vintage Platinum Brooches
Materials
Diamond, Opal, Pearl, Gold, 14k Gold, Platinum
Platinum Australian Black Boulder Opal and Diamond Pin Pendant Flowers
Located in Big Bend, WI
Incredible platinum pin/pendant featuring a large Australian black boulder opal. The opal has blue-green play of color with brown ironstone. The large opal measures about 22mm x 14mm...
Category
21st Century and Contemporary Platinum Brooches
Materials
Diamond, Opal, Platinum
Art Deco Opal & Diamond Brooch
Located in New York, NY
Art Deco Opal & Diamond Brooch
A platinum and 18 karat white gold brooch set with a center black opal weighing approximately 7.75 carats framed by approxim...
Category
1920s Art Deco Vintage Platinum Brooches
Materials
Diamond, Opal, Black Opal, Gold, 18k Gold, White Gold, Platinum
Edwardian c1920's Semi-Black Crystal Opal, Old-Cut Diamond, 15K Gold Bar Brooch
Located in MELBOURNE, AU
Crafted with refined elegance
this stunning Bar Brooch
is dating from Edwardian circa 1920's period,
yet it's in beautiful condition
~~
Of lovely bar design,
it centers a bezel...
Category
1920s English Edwardian Vintage Platinum Brooches
Materials
Opal, Diamond, Platinum, 15k Gold
Opal & Diamond Brooch
Located in New York, NY
Opal & Diamond Brooch
1 center opal surrounded by 5 large old mine diamonds & 91 small round cut diamonds, suspending a pear shape cabochon opal set with round cut diamonds
Cente...
Category
1980s Vintage Platinum Brooches
Materials
Diamond, Opal, Gold, 14k Gold, 18k Gold, Platinum
Black Australian Opal & Diamond Swan Brooch/Pendant Platinum
Located in Dallas, TX
Black Australian Opal & Diamond Swan Brooch/Pendant in Platinum. The swan features a 21.83ct Black Australian Opal and 2.50ctw of round diamonds. The swan...
Category
1980s Vintage Platinum Brooches
Materials
Diamond, Opal, Platinum
Bicolor Platinum/18k Gold Brooch-Pendant with Australian Opal, Unique
Located in Berlin, BE
This breathtaking piece of jewelry is a true work of art. Made of exquisite 950 platinum and 18k yellow gold, this unique brooch-pendant is set with a stunning oval Australian opal t...
Category
21st Century and Contemporary German Modern Platinum Brooches
Materials
Opal, 18k Gold, Platinum
Large Fire Opal Diamond Gemstone Platinum Floral Brooch
Located in Beverly Hills, CA
A large and impressive platinum brooch that is a work of art. It has been hand sculpted to create a lovely blooming flower full of color. The 3 intense orangy-red opals make up the f...
Category
21st Century and Contemporary North American Platinum Brooches
Materials
Diamond, Opal, Fire Opal, Platinum
Bitterman Bros, Edwardian Opal Platinum 14 Karat Gold Shield Antique Stickpin
Located in Philadelphia, PA
Centering a shield shaped opal cabochon - translucent white in body color with spectral pay-of-color. Measuring 6.5 x 7.5 mm - bezel set in platinum with engraved scroll frame surrou...
Category
1910s Edwardian Vintage Platinum Brooches
Materials
Opal, Gold, 14k Gold, Yellow Gold, Platinum
Antique Platinum and Diamond Brooch with Fiery Pipe Opal
Located in New York, NY
Stunning American Edwardian platinum brooch, ca 1900. Barbell form with cylindrical pipe opal. Ends encrusted with rose-cut diamonds.
Category
Early 20th Century American Edwardian Platinum Brooches
Materials
Diamond, Opal, Platinum
Australian Black Opal and Diamond Platinum Tie Tac Brooch Pin
Located in Montreal, QC
Finely detailed Platinum Australian Black Opal and Diamond Tie Tac Brooch, center securely nestled with an oval Australian Black Opal weighing approx. 1.61 Car...
Category
21st Century and Contemporary Modern Platinum Brooches
Materials
Diamond, Opal, Black Opal, Platinum
French Art Deco 1930s Opal Diamonds Platinum Brooch
Located in Poitiers, FR
Brooch in platinum, dog head hallmark.
Delightful antique brooch, it is adorned in the center with a round opal cabochon shouldered on either side with two antique brilliant-cut diam...
Category
1930s French Art Deco Vintage Platinum Brooches
Materials
Opal, Diamond, White Diamond, Platinum
Retro Opal Carved Emerald Sapphire Diamond Platinum Brooch
Located in New York, NY
Mid century retro platinum brooch, featuring oval 14.8mm x 10.3mm opal, carved emerald, sapphire and approximately 2 carats in diamonds (largest stone is approx. 0.85ct ). The brooc...
Category
Mid-20th Century Retro Platinum Brooches
Materials
Diamond, Emerald, Opal, Blue Sapphire, Platinum
Fabulous Art Nouveau Black Starr Frost Platinum Filigree 100ct Australian Opal
Located in St. Petersburg, FL
One of the largest and most magnificent natural Australian opal cabochons we have ever seen, set in an exquisite and signed Black Starr & Frost brooch set with diamonds that has been...
Category
Late 19th Century American Art Nouveau Antique Platinum Brooches
Materials
Diamond, Opal, Platinum
Art Deco Opal, Onyx and Diamond Mosaic Pendant
Located in London, GB
An Art Deco opal and onyx mosaic brooch, the oval panel a mosaic consisting of fire opal, black opal, and onyx, depicting three yachts at sunset, within a delicately scalloped border...
Category
1920s British Art Deco Vintage Platinum Brooches
Materials
Diamond, Onyx, Opal, Platinum
Carved Chalcedony Sculpture and Opal in 18kt Gold Pendant, Enhancer, and Brooch
Located in Logan, UT
This elegant jewel features one of Steve Walters’ incredible carvings. Sculptured waves run the length of this natural black chalcedony, with a field of ...
Category
21st Century and Contemporary American Contemporary Platinum Brooches
Materials
Chalcedony, Diamond, Opal, 18k Gold, Platinum, Gold
Boulder Opal Diamond Gold Flower-Bouquet Brooch-Pendant
Located in Beverly Hills, CA
A sweet brooch featuring a bouquet of gem-set flowers! The central flower is made of a luscious Australian boulder opal with great play of color, showing strong flashes of greens and...
Category
21st Century and Contemporary American Platinum Brooches
Materials
Diamond, Opal, Gold, 18k Gold, Yellow Gold, Platinum
Opal and Diamond Drop Brooch
Located in New York, NY
Opal & Diamond Drop Brooch set in Platinum
Approx Opal drop Weight: 26.32 Cts
Approx Oval Opal: 6.00 Cts
Approx Diamond Weight: 8.59 Cts
Measureme...
Category
1960s Vintage Platinum Brooches
Materials
Diamond, Opal, Platinum
Sophia D, 12.89 Carat Opal Bird Brooch with Diamonds and Gemstones
By Sophia D
Located in New York, NY
Platinum Set brooch with diamonds that weigh 2.95ct come together with 12.89ct of Opal, 0.45ct of Sapphires, 2.06ct of Rubies and 0.50ct of Emeralds.
Sophia D by Joseph Dardashti LT...
Category
2010s American Platinum Brooches
Materials
Diamond, Emerald, Opal, Ruby, Sapphire, Platinum
Antique 1900s Opal and Diamond Yellow Gold Brooch
Located in Jesmond, Newcastle Upon Tyne
A fine opal and 0.22 carat diamond, platinum set, 15 karat yellow gold brooch; part of our antique jewelry and estate jewelry collections.
The elongated shaped pierced decorated frame of this fine antique opal brooch...
Category
Early 1900s Unknown Antique Platinum Brooches
Materials
Diamond, Opal, 15k Gold, Yellow Gold, Platinum
Oscar Heyman Gold 30 Carat One of a Kind Black Opal Snacking Fish Brooch
By Oscar Heyman
Located in New York City, NY
Oscar Heyman 18kt yellow gold and platinum brooch contains an extraordinarily fine fancy shape Australian black opal weighing 30.63cts. This unique piece also contains 97 round diamonds (1.08cts, F/ VS) and 1 pear shape black opal...
Category
2010s American Contemporary Platinum Brooches
Materials
Diamond, Opal, Gold, Platinum
Victorian 5.95 Carat Opal and Diamond Platinum Brooch
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique Victorian 5.95 carat opal and 0.35 carat diamond, platinum and 18 carat yellow gold brooch; part of our diverse antique jewelry collections.
his stunning, fine and impressive antique brooch has been crafted in platinum with an 18k yellow gold setting.
The pierced decorated frame is embellished with a feature 5.95 carat heart shaped cabochon cut opal, 18 ct yellow gold claw set to the centre of the design.
The opal is surrounded by thirteen Dutch cut diamonds, individually collet set within an interlacing border.
The heart shaped platinum setting is embellished with a Marquess coronet design incorporating ten further collet set Dutch cut diamonds.
The brooch secures to the reverse with a hinged pin and clasp, crafted in 15 ct white gold.
This stunning Victorian opal and diamond brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum, 18 and 15 carat gold.
This impressive antique heart brooch...
Category
Late 20th Century Unknown Late Victorian Platinum Brooches
Materials
Diamond, Opal, 18k Gold, Yellow Gold, Platinum
Midcentury Platinum Brooch with Opal, Diamonds, Emeralds, and Blue Sapphires
Located in New York, NY
A swirling array of gemstones are set in this elegant mid century brooch. The center features a 5.73 carat oval Opal. Two rows of graduating c...
Category
1960s Retro Vintage Platinum Brooches
Materials
Diamond, Emerald, Opal, Blue Sapphire, Platinum
Opal 4.65 Carat Diamond Brooch
Located in Dallas, TX
Such a lovely treasure from the past! Composed of platinum and secured with a straight pin clasp, in an Art Deco style. This beauty has sections of opal, alternating with diamonds....
Category
Mid-20th Century Platinum Brooches
Materials
Diamond, Opal, Platinum
Art Deco Opal Diamond Pin
Located in New York, NY
This one-of-a-kind platinum Art Deco from the early 20th-century pin features an exquisite 18mm x 14mm black opal center surrounded by prong and bezel set Old European Cut diamonds. ...
Category
Early 20th Century American Art Deco Platinum Brooches
Materials
Diamond, Opal, Platinum
Art Deco Platinum Filigree Pin with Black Opal and Diamonds
Located in Houston, TX
Art Deco filigree openwork rectangular shaped pin composed of platinum set with round diamonds, featuring a central round black opal. The pin contains 1.37 total carats of diamonds, ...
Category
1920s Unknown Art Deco Vintage Platinum Brooches
Materials
Diamond, Opal, Black Opal, Platinum
Australian Crystal Opal Emerald Diamond Ribbon Brooch Clip Pin
Located in Miami Beach, FL
Beautiful custom made platinum brooch. Featuring a 22c Crystal Opal in an emerald and diamond frame. The photo does not do the opal justice. It has incredible vibrant play of color - very nice broad flashes on red, green, yellow, and blue. The opal is set amongst approximately 7c diamonds and 2.10c emeralds.
Category
1960s Unknown Vintage Platinum Brooches
Materials
Diamond, Emerald, Opal, Platinum
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