AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING Of cluster ...
Hammer
€6,500
AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING Of cluster design, centring a cushion-shaped sapphire within a graduated old brilliant-cut diamond surround, mounted in 18k gold and platinum, ring size Q
Accompanied by a report from the IGN laboratory in Rome, stating that the natural sapphire weighing approximately 4.70cts, is of Burmese origin (Myanmar), with no indications of heat treatment and the old mine-cut diamonds are weighing approximately 1.60cts total, mounted in yellow gold and platinum. Report no. 39715, dated May 2nd 2026.
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Sapphires: of blue hue, medium tone, good transparency, minor facet abrasions visible under 10x magnification due to normal wear
Accompanied by a report from the IGN laboratory in Rome, stating that the natural sapphire weighing approximately 4.70cts, is of Burmese origin (Myanmar), with no indications of heat treatment and the old mine-cut diamonds are weighing approximately 1.60cts total, mounted in yellow gold and platinum. Report no. 39715, dated May 2nd 2026.
Diamonds: bright and lively
Yellow and white metal unmarked, tested by the jewellery department to be 18K gold and platinum
Normal signs of wear, overall in good condition
Total gross weight approx. 4.8g
Adam’s Auctioneers does not guarantee the standard of gold or platinum unless an item bears an official hallmark. In certain instances, metal content may be tested using a Thermo Scientific Nitron Handheld XRF Analyser. This device examines metal to a depth of approximately 8 microns only, and any results obtained through electronic testing must be regarded as indicative rather than definitive, as inaccuracies may occur.
Where catalogue descriptions or condition reports refer to marks denoting metal fineness, or include an opinion as to metal content, such information is provided for guidance only. All statements contained within the catalogue represent expressions of opinion. Prospective purchasers must satisfy themselves as to all such matters prior to bidding.
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Hammer
€6,500
AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING Of cluster design, centring a cushion-shaped sapphire within a graduated old brilliant-cut diamond surround, mounted in 18k gold and platinum, ring size Q
Accompanied by a report from the IGN laboratory in Rome, stating that the natural sapphire weighing approximately 4.70cts, is of Burmese origin (Myanmar), with no indications of heat treatment and the old mine-cut diamonds are weighing approximately 1.60cts total, mounted in yellow gold and platinum. Report no. 39715, dated May 2nd 2026.
More Information
Sapphires: of blue hue, medium tone, good transparency, minor facet abrasions visible under 10x magnification due to normal wear
Accompanied by a report from the IGN laboratory in Rome, stating that the natural sapphire weighing approximately 4.70cts, is of Burmese origin (Myanmar), with no indications of heat treatment and the old mine-cut diamonds are weighing approximately 1.60cts total, mounted in yellow gold and platinum. Report no. 39715, dated May 2nd 2026.
Diamonds: bright and lively
Yellow and white metal unmarked, tested by the jewellery department to be 18K gold and platinum
Normal signs of wear, overall in good condition
Total gross weight approx. 4.8g
Adam’s Auctioneers does not guarantee the standard of gold or platinum unless an item bears an official hallmark. In certain instances, metal content may be tested using a Thermo Scientific Nitron Handheld XRF Analyser. This device examines metal to a depth of approximately 8 microns only, and any results obtained through electronic testing must be regarded as indicative rather than definitive, as inaccuracies may occur.
Where catalogue descriptions or condition reports refer to marks denoting metal fineness, or include an opinion as to metal content, such information is provided for guidance only. All statements contained within the catalogue represent expressions of opinion. Prospective purchasers must satisfy themselves as to all such matters prior to bidding.
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Estimate
Time, Location
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