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A vintage silver-toned oval brooch with a thermochromic cabochon

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Start price: £10

Estimated price: £10 - £15

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Description

This oval costume jewellery brooch features a central large oval cabochon set within an openwork scalloped frame. The cabochon is translucent and displays a colour gradient shifting from purple at the centre to teal-blue at the perimeter, consistent with a thermochromic mood stone or colour-treated glass. The frame is constructed from silver-toned metal with a textured, beaded edge. The reverse shows the adhesive backing for the cabochon and a horizontal pin mechanism with a roll-over safety catch. No maker’s marks or hallmarks are visible on the metal.


Condition report:

The brooch is in good vintage condition. The central stone is intact without visible chips. The silver-toned metal exhibits significant tarnish and oxidation throughout, particularly on the reverse and in the recessed areas of the frame. The pin mechanism is in working order.