A French Art Deco platinum, gold, rock crystal, onyx and diamond brooch, c.1925,
a frosted rock crystal hoop with a matching section at each side, with an oval cabochon onyx milligrain set to the centre. An open tulip frame of graduated old Swiss cut and old eight cut diamonds. Lines of calibré cut cabochon onyx to each side with lines of graduated diamonds, all milligrain set to chevron end caps. A support frame to the back, hand engraved with laurel garlands, and a pin and visor catch. French poinçon, small guarantee mark. Tested as platinum and 18ct gold. Maker's mark indistinct. Fitted case by 'Alfred Hamsy, Joallier, 277 rue St Honoré, Paris - Cannes'. 60 x 44mm, 15.87g
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Estimated at £2,500 - £3,500
One very small calibre cut agate/onyx with a central black colour and colourless at the borders, only visible under 10X magnification.
Very crisp and appears to have been hardly worn.
Visor catch secure.
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The auction details are as follows:
Auction: Fine Jewellery, Watches and Designer Handbags, Tue, 19th Nov 2019
It is accepted practice that many coloured gemstones, including coral and jade, are routinely treated to enhance their colour and possibly clarity and, unless otherwise stated in individual condition reports, it must be assumed that those offered for sale have possibly been subjected to such treatments.
Many of the jewellery lots in our auction are Continental or made outside the UK and whilst they have all been spot tested with acid to estimate the carat of the gold, as
they were not manufactured for the UK market and may have subsequent repairs or alterations, we cannot guarantee any item will pass assay in the UK.
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Also note that most of the watches have been opened and will therefore require resealing prior to being worn.
15 November 2019 9am - 5pm
17 November 2019 10am - 1pm
18 November 2019 9am - 5pm
19 November 2019 from 9am
20 November 2019 from 9am
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