A 14k bi-colour gold and spinel brooch - image-1
A 14k bi-colour gold and spinel brooch - image-2
A 14k bi-colour gold and spinel brooch - image-3
A 14k bi-colour gold and spinel brooch - image-1A 14k bi-colour gold and spinel brooch - image-2A 14k bi-colour gold and spinel brooch - image-3

Lot 144 Dα

A 14k bi-colour gold and spinel brooch

Auction 1139 - overview Cologne
14.11.2019, 16:00 - Jewellery & Boxes
Estimate: 1.500 € - 2.000 €
Result: 2.728 € (incl. premium)
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A 14k bi-colour gold and spinel brooch

Set with ten old-cut diamonds (in total ca. 2.0 ct, N/O, vs-si) and a natural red cushion-cut spinel of 2.19 ct, (8,88 x 7,10 x 4,28 mm, no indications of heating, with indications of minor clarity enhancement). Hallmarks: Fineness 585. 4.7 x 4.3 cm. Weight 17.2 g.
Circa 1945/50.

Certificate

Gemstone Report of Deutsche Stifung Edelsteinforschung (DSEF), Idar-Oberstein no. 029828 from 10th October 2019 confirms the stone to be a natural spinel with no indications of heat treatment (NTE). indications of minor clarity enhancement, origin: Sri Lanka.