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Dreicer & Co. Platinum, Jadeite Jade and Diamond A...
Dreicer & Co.
Early 20th Century Art Deco Platinum Brooches
Diamond, Jade
Dreicer & Co., was an important jewelry store in the early 20th century. This brooch was made by them circa 1920. It is platinum 1.75 inches across and accented with round European cu...
Art Deco Platinum Old European Cut Diamond Emerald...
Unknown
Vintage 1920s Art Deco Platinum Brooches
18k Gold, Yellow Gold, Diamond, Emerald
Era: Art Deco c.1920's Composition: Platinum w/ 18K yellow gold stick pin Center Stone: Old European Cut Diamond Center Stone Carat: Approximately 3 carats Color / Clarity: K / Vs1 ...
Important Harry Winston Diamond Duette Brooch
Important Harry Winston Diamond Duette Brooch
Harry Winston
Vintage 1950s Platinum Brooches
Important Harry Winston diamond and platinum duet brooch. Brooch comes apart to form 2 smaller pins to be worn separately or together. Circa 1950s, with over 12 cts. of E-F, VVS diamo...
Pearl Diamond Platinum Gold Double Clip Brooch Pin, French, 1930s
Pearl Diamond Platinum Gold Double Clip Brooch Pin...
Unknown
Vintage 1930s Platinum Brooches
Yellow Gold, Diamond, Pearl
A pair of double clips created in France in the 1930s. Unusual and French chic, the pair is a great addition to your jewelry collection. Made of platinum (tested) and 18 karat (tested) ...
9.02 Carat Diamonds Platinum Pendant/Brooch, circa 1920
9.02 Carat Diamonds Platinum Pendant/Brooch, circa...
Unknown
Vintage 1940s Art Deco Platinum Brooches
Diamond, White Diamond
Fashioned in Art Deco design are swirls of baguette diamonds (83 bagettess 5.25 ctw with G color, VS internal clarity) surrounding 16 round brilliant cut diamonds (.56 ctw with G color,...
Doryn Wallach Onyx and 2.00 Carat Diamond Pendant
Doryn Wallach Onyx and 2.00 Carat Diamond Pendant
Unknown
20th Century Art Deco Platinum Brooches
14k Gold, White Diamond, Onyx
Black onyx and 2.00 tcw white diamond pendant, repurposed from an Art Deco brooch, platinum, 30" chain in 14K white gold. The platinum and diamond settings are original. The onyx and ...
18 Karat Gold and Platinum Diamond Flowering Thist...
Unknown
Vintage 1950s Retro Platinum Brooches
18k Gold, Yellow Gold, Diamond
Composition: 18K Yellow Gold & Platinum Use: Piece can be worn as a pendant/slide or as a brooch/pin Primary Stone: Diamonds Stone Carat: 85 diamonds for approximately 3 carats total...
Henri Piquet Turquoise Diamond Platinum Pin Brooch Clip
Henri Piquet Turquoise Diamond Platinum Pin Brooch...
Vintage 1920s Platinum Brooches
18k Gold, Yellow Gold, Diamond, Turquoise
Stunning turquoise and diamond safety pin created by Henri Piquet in France in the 1920s. Chic and elegant, the pin is a great addition to your jewelry collection. It is made of platin...
Art Deco Natural Pearl Diamond Platinum Pin

Art Deco Natural Pearl Diamond Platinum Pin
Unknown
Antique 19th Century Platinum Brooches
Diamond, Natural Pearl, White Diamond
Platinum Art deco pin consisting of 112 old European cut diamonds having a total weight of approximately 6.00 carats set with one 8.40mm natural pearl.
Doryn Wallach Onyx and Diamond Pendant

Doryn Wallach Onyx and Diamond Pendant
Unknown
20th Century Art Deco Platinum Brooches
White Diamond, Onyx
Elongated pendant, featuring black onyx and 0.65 tcw white diamonds diamonds, repurposed from a vintage brooch, 30” chain, platinum
Cartier Platinum Diamond Brooch Necklace

Cartier Platinum Diamond Brooch Necklace
Cartier
Vintage 1980s Platinum Brooches
Diamond, White Diamond
A fabulous vintage Cartier diamond brooch featuring 1.35ct appx of the finest Cartier round brilliant cut diamonds.
4.9 Carat Art Deco Ruby Emerald Diamond Platinum Brooch

4.9 Carat Art Deco Ruby Emerald Diamond Platinum B...
Unknown
Early 20th Century Art Deco Platinum Brooches
Diamond
Art deco brooch depicting a Serpent battling a Griffin. Round and marquise shape diamonds weighing approximately 4.90 carats.
Black Starr & Frost Art Deco Enamel Diamond Platinum Dog Brooch
Black Starr & Frost Art Deco Enamel Diamond Platin...
Early 20th Century Art Deco Platinum Brooches
Diamond
Platinum Art Deco brooch in black enamel with diamond by Black, Starr & Frost
Art Deco Diamond Bar Brooch

Art Deco Diamond Bar Brooch
Unknown
Vintage 1920s Art Deco Platinum Brooches
18k Gold, Diamond
An Art Deco Diamond Bar Brooch, set with old-cut diamonds, one larger center stone, surrounded with millegrain and diamonds. The center design incorporates Greek Key edging with beautif...
Natural Pearl Diamond Platinum Brooch Pin Clip, GIA Certified
Natural Pearl Diamond Platinum Brooch Pin Clip, GI...
Unknown
Vintage 1930s Platinum Brooches
Diamond, Natural Pearl
Unique and rare brooch created in France in the 1930's. It is made of platinum encrusted with Old European cut diamonds and features three natural pearls - white 12.49 mm, conch 10.55 m...
1920s Art Deco Onyx Diamond Platinum Filigree Hair Barrette Brooch
1920s Art Deco Onyx Diamond Platinum Filigree Hair...
Unknown
Early 20th Century Art Deco Platinum Brooches
Diamond, Onyx
European cut diamonds are set in fine platinum filigree work, this early Art Deco piece has fancy cut onyx. This piece is two inches in length and has two different and separate backs...
Aquamarine and Diamond Platinum Brooch

Aquamarine and Diamond Platinum Brooch
Unknown
Mid-20th Century Platinum Brooches
Aquamarine, Diamond
This gorgeous aquamarine and diamond platinum brooch features a natural aquamarine surrounded by 62 round brilliant cut diamonds with an estimated total weight of 4.5 carats
Naomi Sarna Queen of the Sea Brooch

Naomi Sarna Queen of the Sea Brooch
Naomi Sarna
21st Century and Contemporary Platinum Brooches
18k Gold, Sterling Silver, White Gold, Yellow Gold, Black Diamond, Freshwat...
This magnificent one of a kind brooch features a natural GIA certified Chinese freshwater pearl. The pearl is accentuated with beautiful layers of platinum, 18K yellow gold, 18K white g...
Art Deco Bow Brooch

Art Deco Bow Brooch
Unknown
Early 20th Century Art Deco Platinum Brooches
Diamond, Sapphire
Platinum (with a gold pin stem), this brooch has fine diamonds and fancy cut fine blue sapphires. The pin is 2.50 inches long and centers a .50 ct old cut diamond. The 45 French cut f...
Important 9.3 Carat Baguette Marquise Round Brilli...
Unknown
Late 20th Century Contemporary Platinum Brooches
Diamond
Important diamond brooch of cluster design, set with round brilliant, marquise and baguette diamonds weighing approximately 9.3 carats. Diamond : Approx. 9.30ct. F-G colour VVS Round B...
Tiffany & Co. Diamond Pearl Platinum and Gold Flower Brooch
Tiffany & Co. Diamond Pearl Platinum and Gold Flow...
Tiffany & Co.
Vintage 1970s Platinum Brooches
18k Gold, Diamond, Cultured Pearl
An 18 karat gold and platinum brooch with diamonds and pearls by Tiffany & Co. The brooch has 52 round-cut diamonds with an approximate total weight of 1.75 carats, and 18 cultured pear...
Mid-20th Century Diamond and Platinum Sailfish Brooch
Mid-20th Century Diamond and Platinum Sailfish Bro...
Unknown
Mid-20th Century Platinum Brooches
Diamond, Ruby
A Mid-20th Century platinum brooch with diamonds. The brooch has 21 mixed fancy cut diamonds with an approximate total weight of 3.00 carats, and 48 round-cut diamonds with an approxima...
Antique Edwardian Diamond Pearl Platinum Jabot Pin
Antique Edwardian Diamond Pearl Platinum Jabot Pin...
Unknown
Early 20th Century Edwardian Platinum Brooches
18k Gold, White Gold, White Diamond, Natural Pearl
A stunning and extremely high quality French Jabot Pin modelled in Platinum & Gold, set with 4 carats of sparkling transitional cut diamonds and a natural pearl. This particular piece h...
Estate Diamond Multi Shape Brooch in Platinum
Estate Diamond Multi Shape Brooch in Platinum
Unknown
20th Century Platinum Brooches
Diamond, White Diamond
11 carats of multi shape white diamonds in this gorgeous estate brooch. Made in platinum so it's durable and has a good weight to it. Perfect for anyone who enjoys estate fine jewelry...
15.25 Carat Oval Aquamarine, Platinum and Diamond Brooch
15.25 Carat Oval Aquamarine, Platinum and Diamond ...
Unknown
Antique Early 19th Century Edwardian Platinum Brooches
Aquamarine, Diamond
One oval aquamarine ap. 15.25 cts., small old-mine & single-cut diamonds, c. 1915, ap. 6 dwts. Aquamarine: medium sky blue around table, lighter faintly greenish-blue in center, clean...
1970s Platinum Brooch with Approximately 18.00 Carat Total Diamonds
1970s Platinum Brooch with Approximately 18.00 Car...
Unknown
Vintage 1970s Retro Platinum Brooches
Diamond
Made of platinum and weighs 15.70 DWT (approx. 24.42 grams). It contains 10 round diamonds weighing 3.00 CTTW, 41 baguette G-H color, VS clarity diamonds weighing 5.00 CTTW, 16 pear dia...
Platinum Fish Pin Accented with Diamonds Moonstone and Chrysoberyl Cats Eye Pin
Platinum Fish Pin Accented with Diamonds Moonstone...
Unknown
Vintage 1950s Platinum Brooches
Chrysoberyl, Diamond, Moonstone
This large incredible platinum pin is made with so much quality! The large oval shape moonstone has a beautiful blueish hue and the chrysoberyl cats eye has a very sharp eye. The moonst...
Round Brilliant and Baguette Diamond Platinum Double Bow Pendant Brooch
Round Brilliant and Baguette Diamond Platinum Doub...
Unknown
Late 20th Century Retro Platinum Brooches
Diamond
A round brilliant and baguette diamond platinum double bow pendant and brooch. The baguette cut diamonds are channel set, with prong set round brilliant diamonds. There is a total of ...
15 Oval Ruby Diamond Pendant 5-6 Carat

15 Oval Ruby Diamond Pendant 5-6 Carat
Unknown
Antique Late 19th Century Contemporary Platinum Brooches
Diamond, Ruby
15 oval and pear shaped Burma rubys between 5-6 Cts 58 round brilliant very fine quality diamonds 0.08-0.25 each Total weight of diamond 10k
Tiffany & Co. Two Gold, Platinum, Carved Gem-Set and Diamond Beetle Pins
Tiffany & Co. Two Gold, Platinum, Carved Gem-Set a...
Tiffany & Co.
Antique Late 19th Century Platinum Brooches
Gold, Diamond
18 kt., fluted amethyst & pink tourmaline, 83 round diamonds ap. 1.40 cts., both signed Tiffany & Co., ap. 20.3 dwts. gross. Diamonds: F-G-VS. Amethyst: medium dark purple, slightly ...
Belle Époque Pearls Diamonds Platinum Brooch
Unknown
Antique Late 19th Century Belle Époque Platinum Brooches
Diamond, Cultured Pearl
Circular Belle Époque platinum brooch with a central natural pearl encompassed by pearls and rose cut diamonds
Diamond Flower Brooch

Diamond Flower Brooch
Unknown
Vintage 1950s Romantic Platinum Brooches
Diamond
Dazzling flower brooch with a middle stone of ca. 1.00ct round diamond, surrounded of 221 diamonds together ca. 11.00ct. Quality of the diamonds: H-I color, VS-SI clarity. In platinum
René Boivin Diamond Double Clip Brooch, 1935
René Boivin
Vintage 1930s Platinum Brooches
18k Gold, White Gold, Diamond
Two exquisite diamond clips, by René Boivin. Each clip is of a geometric design, decorated with 64 baguettes and 54 brilliant cut diamonds (in total approx.: 5,80 ct). Platinum setting ...
Art Deco Baroque South Sea Pearl Diamond Platinum Brooch Pendant
Art Deco Baroque South Sea Pearl Diamond Platinum ...
Unknown
Vintage 1940s Art Deco Platinum Brooches
Diamond, Cultured Pearl
Featuring a vintage Art Deco brooch/Pendant. This piece is rub set with Old cut Round Diamonds. The piece also features a 11mm button Cultured Shaped South Sea Pearl and finished with o...
1950s 3.43 Carat Diamond and Platinum Spray Brooch...
Unknown
Vintage 1950s Platinum Brooches
Diamond
An exceptional vintage 1950's 3.43 carat diamond and platinum 'spray' brooch; part of our diverse diamond jewellery and estate jewelry collections. This exceptional, fine and impressiv...
Antique Old European Cut Diamonds Platinum Brooch

Antique Old European Cut Diamonds Platinum Brooch
Unknown
Vintage 1920s Art Deco Platinum Brooches
Gold, Diamond, White Diamond
Looking to make a statement? This antique diamond brooch pin is a sure win! Over 3 carats of old European cut diamonds set in platinum. Outside the larger 3 carats of Old European diamo...
1940s Natural Blue and Purple Sapphire Diamond Platinum Brooch
1940s Natural Blue and Purple Sapphire Diamond Pla...
Unknown
Vintage 1940s Platinum Brooches
Diamond, Sapphire, Blue Sapphire
This wonderfully designed and meticulously handcrafted 1940s brooch was worked out of platinum in the shape of a floral bouquet. The stems are set with bright white and sparkly round an...
J.E. Caldwell Retro Diamond Platinum Floral Brooch
J.E. Caldwell Retro Diamond Platinum Floral Brooch...
J.E. Caldwell & Co
Vintage 1940s Art Deco Platinum Brooches
Diamond
J.E. Caldwell Diamond Floral Bouquet Brooch in Platinum, with Round and Baguette Diamonds. Approximate Diamond Weight: 12.00ct
Diamond Platinum Wreath Brooch

Diamond Platinum Wreath Brooch
Unknown
21st Century and Contemporary Contemporary Platinum Brooches
Diamond
Diamond Wreath Brooch in Platinum with Baguette, Tapered Baguette, and Round Diamonds. Length 1.5" x Width 1 3/8", Total Diamond Weight 5.00ct
1940s Cabochon Sapphires with Diamonds Convertible...
Unknown
Vintage 1940s Platinum Brooches
Diamond, Sapphire
One Ladies Three Dimensional Platinum Convertible Brooch Embellished With {12} Cabochon Beautiful Color Sapphires Weighing Approximately {5} Carats Total weight.Brooch Further Embellis...
Antique Old European Cut Diamond and Pearl Shamrock Pendant Pin
Antique Old European Cut Diamond and Pearl Shamroc...
Unknown
20th Century Victorian Platinum Brooches
18k Gold, Diamond, Pearl
A gorgeous combination of diamonds and pearls embellish this pretty pendant/pin. Designed as a four leaf shamrock each petal showcases four pearls, a central old European cut diamond we...
Art Deco Diamond White Gold Platinum Filigree Brooch

Art Deco Diamond White Gold Platinum Filigree Broo...
Unknown
Vintage 1920s Art Deco Platinum Brooches
14k Gold, Diamond
Art Deco Diamond White Gold Platinum Brooch Art Deco 1925 white gold and platinum diamond bar brooch. The design features five graduating round diamonds totaling approximately 0.33 ca...
Rock Crystal Crescent Moon Platinum Diamond Owl Brooch
Rock Crystal Crescent Moon Platinum Diamond Owl Br...
Unknown
Early 20th Century Art Deco Platinum Brooches
Diamond, Rock Crystal, Tiger's Eye
Rare and collectable. This handmade platinum and diamond owl imposingly perches on a perfectly carved rock crystal crescent moon. 1 5/8's in size.
Symmetrical Art Deco Gem Set Jabot Pin by Cartier,...
Vintage 1930s Art Deco Platinum Brooches
18k Gold, Diamond, Pearl, Rock Crystal
A symmetrical Art Deco gem set jabot pin by Cartier Paris, the head and tail each designed as a leaf, a pearl set in carved rock crystal framed by a rose cut diamond border, set in plat...
Unusual Art Deco Diamond Platinum Brooch
Unusual Art Deco Diamond Platinum Brooch
Unknown
Early 20th Century Art Deco Platinum Brooches
18k Gold, Diamond
Platinum Art Deco brooch set with old european cut diamonds. The two concave very fine saw piercing pattern are really unusual. The Needle is in white gold French Hallmarks
Tiffany & Co Vintage Old European Cuts Diamond Pin Brooch 4.60 TCW 18K Platinum
Tiffany & Co Vintage Old European Cuts Diamond Pin...
Tiffany & Co.
2010s Art Deco Platinum Brooches
Diamond
Tiffany & Co Vintage Old European Cut Diamond Brooch Pin containing 18 Stones ....4.60 TCW F - G color, VS1 - VS2 clarity. Set with 18K Yellow Gold and Platinum. Dimensions are 3.80 -...
Cartier Paris 1960's Diamond, Sapphire and Platinum 'Panthère' Brooch
Cartier Paris 1960's Diamond, Sapphire and Platinu...
Cartier
Vintage 1960s Platinum Brooches
Diamond, Emerald, Blue Sapphire
A French Mid-20th Century platinum brooch with diamonds, sapphires, and emeralds by Cartier. The iconic panther brooch has pavé round-cut diamonds with an approximate total weight of 4....
1930s Art Deco Diamond Platinum Brooch
1930s Art Deco Diamond Platinum Brooch
Unknown
Vintage 1930s Art Deco Platinum Brooches
Diamond
Art Deco Diamond Platinum Brooch. Circa 1930.
Tiffany & Co. Yellow Gold Heron Brooch Pin Clip with Coral Amazonite Diamond
Tiffany & Co. Yellow Gold Heron Brooch Pin Clip wi...
Tiffany & Co.
Vintage 1950s Platinum Brooches
18k Gold, Yellow Gold, White Gold, Coral, Diamond, Amazonite
Colorful and fun clip created by Tiffany & Co. in Italy in the 1950s. Designed as a heron bird sitting on a branch. Articulated, with a strong character, the pin is definitely a convers...
Cartier Paris Emerald Ruby Diamond Gold Platinum Flower Brooch
Cartier Paris Emerald Ruby Diamond Gold Platinum F...
Cartier
Vintage 1930s Art Deco Platinum Brooches
Gold, Diamond, Emerald, Ruby
A centrally set pistil of a lush green carved emerald is surrounded by bright white round brilliant cut diamonds and enhanced with platinum stamens, that have rich red ruby anthers, all...
Star Diamond and Yellow Gold Pendant, Late 20th Ce...
Unknown
Antique Mid-19th Century Platinum Brooches
Yellow Gold, Diamond
A delicate antique diamond pendant, shaped like a star. Of open cluster design, set with 23 brilliant cut diamonds (in total approx: 3,90 carats) and connected by a knife edge linking. ...
Art Deco Enamel Onyx Diamond Platinum Sailfish
Art Deco Enamel Onyx Diamond Platinum Sailfish
Unknown
Early 20th Century Art Deco Platinum Brooches
Diamond, Onyx
Period Art Deco diamond sailfish brooch. Beautiful quality with pave diamond set body and navy and black enamel accents. Motifs such as this became popular in the 30's and became known ...
1900s Antique Italian 1.38 Carat Diamond Seed Pear...
Unknown
Antique Early 1900s Platinum Brooches
Diamond, Pearl, Natural Pearl
A stunning antique Italian 1.38 carat diamond and seed pearl, platinum and 18 carat white gold pendant / brooch; part of our diverse antique jewelry collections This stunning, fine and...
Petite Diamond Brooch Clips in Platinum, circa 1930s
Petite Diamond Brooch Clips in Platinum, circa 193...
Unknown
Early 20th Century Art Deco Platinum Brooches
White Diamond
Circa 1930's Petite Diamond Brooch Clips in Platinum Sixty Eight Round Brilliant Cut Diamonds weighing 2.50 carats approximately [GH VS-SI1] Most Brooch-Clips are Humongous and Mostly U...
Ruser 1950s Owls Gold Platinum Pearl Diamond Brooch

Ruser 1950s Owls Gold Platinum Pearl Diamond Brooc...
Ruser
Vintage 1950s Modern Platinum Brooches
14k Gold, Diamond, Pearl
Ruser 1950s family of owls gold platinum brooch with diamonds and pearls. The whimsical design depicts a family of owls perched on a hollowed-out tree trunk crafted in 14-karat yellow g...
1940s Ruby, Sapphire, Diamond and Nephrite Jade Pi...
Unknown
Mid-20th Century Platinum Brooches
Gold, 18k Gold, Diamond, White Diamond, Jade, Ruby, Sapphire, Blue Sapphire...
Circa 1940's Set in Platinum/18k Yellow Gold: 35.70g Accented by 14 Cabuchon-cut Oval Rubies, 1 Cabuchon-cut Oval Sapphire, 18 Round-brilliant cut White Diamonds, and a Nephrite Jade Le...
Antique Diamond and Amethyst Heart Pendant Brooch
Antique Diamond and Amethyst Heart Pendant Brooch
Unknown
Antique Late 19th Century Belle Époque Platinum Brooches
18k Gold, Amethyst, Diamond
The center deep violet purple amethyst is from the Siberian area of Russian, it weighs 20 cts., approximately. This center heart shaped stone is surrounded and accented by 80 old cut w...
Art Deco Diamond Ruby Gold Platinum Horse Shoe Brooch
Art Deco Diamond Ruby Gold Platinum Horse Shoe Bro...
Unknown
Vintage 1930s Art Deco Platinum Brooches
Gold, Diamond, Ruby
Vintage Art Deco design makes a classic horse shoe motif simply dramatic. Brilliant cut diamonds are set in platinum and rich yellow gold is added to hold beautiful calibrated rubies. 1...