A platinum 18k gold diamond and onyx Art Déco brooch with original

A platinum 18k gold diamond and onyx Art Déco brooch with original case by Hessenberg, Frankfurt. Rectangular design with bevelled corners, geometrically pierced and millegrain-set with brilliant- and 8/8-cut diamonds and a central old-cut diamond (approx. 0.45 ct, H/I, VS/SI), framed by a continuous onyx border. Finely chased decoration. Not hallmarked. 1.7 × 4.7 cm. Weight 10.50 g. In the original fitted case by "Hessenberg Frankfurt a/Main". Jeweller Hessenberg, Frankfurt, 1925 - 30.

Stima:€1,200

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