GIA Certified Art Deco Diamond and Emerald Brooch

Jade & Diamond Brooch 1 cabochon GIA certified natural jadeite jade surrounded by round cut diamonds set in platinum. Measurements: 1" long Accompanie...

Art Deco Certified Jade & Diamond Daruan Brooch Set in Platinum and a beautiful array of diamonds. Dimensions: approximately 3.60 x 1 inch 1920's

Art Deco Sapphire & Diamond Brooch Sapphires & Round cut Diamonds set in Platinum Measurements: 2.75 inches long

Art Deco Emerald Ruby and Diamond Brooch An art deco platinum brooch set with diamonds, rubies, and emeralds. Approximate Stone Weights: C...

Emerald & Diamond Brooch 9 matching emerald cut emeralds surrounded by pear & marquise cut diamonds set in platinum & 18k white gold Measurements: 2.50" long Emerald Weight: Appr...

Victorian Emerald & Diamond Crawling Lizard Salamander Brooch, set in 14K Yellow Gold made Circa 1900 56 diamonds, Diamond Weight: App. 2.25 cts. 59...

This glorious, diabolically clever piece hails from the Art Deco era (circa 1920s). It is a brooch rendered in gleaming platinum and measuring approximately 42mm long and 21mm wide t...

Art Deco emerald and diamond brooch made in platinum. The center stone is an emerald cut emerald weighing 2.00 carats. There are 2 round bri...

Art Deco Diamond Clips in platinum. Well made with fine white diamonds the brooch can be worn together or separated into separate dress clips. There are 10 cts of near colorless (G...

Art Deco Diamond Clips in platinum. Well made with fine white diamonds the brooch can be worn together or separated into separate dress clips. There are 10 cts of near colorless (G...

A magnificent, fine and impressive, large antique 1930s 8.13 carat diamond and platinum Art Deco brooch; part of our diverse antique jewelry and estate jewelry collections This magnificent, fine and impressive antique diamond brooch has been crafted in platinum. This geometric Art Deco brooch is ornamented to the center with a feature bezel set 1.30Ct Old European cut diamond. The central diamond is encompassed with horizontal pales embellished with thirty-eight pavé set Old European cut diamonds, accented to either end with seven further diamonds within rounded segments. This symmetrical millegrain decorated frame bears four impressive Art Deco swept collar motifs emanating from the central design, each incorporating four swept rays, ornamented with a total of twenty-six pavé cut diamonds. This large and intricate brooch features a paralleling oval border conjoining the aforementioned four cardinal swept motifs, in addition to a rectangular cut cornered border to the outer edge. These impressive borders are ornamented with forty-four pavé set Old European cut diamonds, completing the design. The brooch secures to the reverse with a hinged pin and catch. This Art Deco brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum. The antique 1930s Art Deco brooch in platinum is supplied with an independent diamond grading certificate for the feature diamond, in addition to an independent diamond grading report card for the supporting stones. Condition This magnificent and large antique brooch...

Wonderful Art Deco Diamond and Emerald brooch from the 1930's, set in platinum by Ostertag, France. This lovely design is very reminiscent of Coco Chanel's logo who was his neighbor in the period, where he was located at 16 Place Vendome. Conjoined "C" motifs are are laid with a ladder of diamond baguettes edged with round stones terminating in 2 large diamonds (over 1 carat each) on one end and large fluted Columbian teardrops with tiny pave ball caps on the other. Really exceptional quality and design from 1930's France. Ostertag pieces are exceptionally rare and have the highest quality gems and workmanship c/o the Rubel Freres...