Art Deco Platinum 1.08 Carat Opal and 1.38 Carat Diamond Brooch

An Art Deco period platinum diamond brooch. The art deco style brooch is set with a central marquise cut diamond weighing approximately 0.37ct within a platinum rectangular surmount...

A late Victorian 18ct gold and 0.08 ct diamond lioness brooch. The brooch is crafted in the form of a lioness with an old cut diamond clasped between he...

A Victorian 9 carat sapphire, and diamond crescent brooch, circa 1890s. As was common for the period, the brooch is unhallmarked, and has been tested...

A Victorian silver and 9 karat gold old-cut diamond bow brooch. The brooch has been beautifully crafted to include 78 diamonds set into the bow brooch. The total diamond weight is ap...

A Georg Jensen 18ct yellow gold "Splash" brooch, design #1324. The brooch was designed by Henning Koppel for Georg Jensen. Stamped Georg Jensen within dotted oval mark, '750', '18K'...

An E. Wolfe & Co. novelty brooch, masterfully created in 18ct gold. This charming umbrella-shaped brooch boasts a unique combination of matte and polished finishes. Its handle is int...

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...

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...

A stunning, fine and impressive antique 3.50 carat diamond and platinum Art Deco brooch; part of our diverse jewellery and estate jewelry collections This stunning, fine and impress...

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...

This platinum and diamond Art Deco brooch is set with one old cut diamond of 0.74 carats, F/G color and i1 clarity. Fine openwork setting in platinum 950 with 50 single cut diamonds ...

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...