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COLOUR CHANGE SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1930 image 1

COLOUR CHANGE SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1930 image 2

Lot 68^Ω

COLOUR CHANGE SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1930

London Jewels

2 December 2021, 11:00 GMT

London, New Bond Street

£24,000 - £30,000

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Jennifer Tonkin

Co-Head of Department UK

Tel: +44 20 7393 3972

Jennifer.Tonkin@bonhams.com

Kate Flitcroft

Co-Head of Department UK

Tel: +44 20 7468 8286

Kate.Flitcroft@bonhams.com

COLOUR CHANGE SAPPHIRE AND DIAMOND DRESS RING, CIRCA 1930

The large cushion-shaped colour change sapphire, weighing 26.32 carats, between millegrain-set single-cut diamond shoulders and a pierced gallery of old brilliant and single-cut diamond trefoil motifs, with a bevelled hoop, numbered 427, ring size J½

Footnotes

Accompanied by a report from The Gem and Pearl Laboratory stating that the colour change sapphire is of natural Sri Lankan origin with no evidence of heat treatment, appearing blue in daylight and purple in incandescent light. Report number 2040, dated 3rd September 2021.

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