AN EARLY 20TH CENTURY DIAMOND SINGLE-STONE RING, CIRCA 1920 ...

by Adam's Auctioneers
1/5

Estimate

€6,000 - €7,000

Fees

AN EARLY 20TH CENTURY DIAMOND SINGLE-STONE RING, CIRCA 1920 Composed of an old European-cut diamond at the centre weighing approximately 2.20cts, within millegrain collet-setting and accented with four single-cut diamonds, to a pierced foliate gallery, mounted in platinum, ring size Q

More Information

Diamond: approx. 2.20cts, estimated colour G/H, estimated clarity VS Remaining 4 single-cut diamond accents: bright and lively Signs under 10x magnification that the ring might have been resizes for the bigger White metal unmarked, tested by the jewellery department to be platinum Normal signs of wear, overall in good condition Total gross weight approx. 4.2g We use a Thermo Scientific Niton handheld XRF analyser for metal testing, which examines surface composition to a depth of around 8 microns. Please note that electronic testing provides indicative results only and may not always be accurate. Gold or platinum content is not guaranteed unless an item is officially hallmarked. Condition reports are intended as a general guide only. We strongly encourage you to view any item in person to assess its condition for yourself. If you have any further questions regarding this lot, feel free to get in touch with the jewellery department.

+ Calendar 2026-05-12 16:00:00 2026-05-12 23:59:59 Europe/London Fine Jewellery & Ladies Watches Adam's Auctioneers
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Auction Date:
12th May 26 at 4pm BST

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Sale Dates:
Tue 12th May 2026 4pm BST (Lots 1 to 245)