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A PLATINUM, STAR SAPPHIRE AND DIAMOND RING, CIRCA 1930 image 1
A PLATINUM, STAR SAPPHIRE AND DIAMOND RING, CIRCA 1930 image 2
A PLATINUM, STAR SAPPHIRE AND DIAMOND RING, CIRCA 1930 image 3
Lot 85

A PLATINUM, STAR SAPPHIRE AND DIAMOND RING, CIRCA 1930

22 July 2025, 10:00 PDT
Los Angeles

US$2,500 - US$3,500

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A PLATINUM, STAR SAPPHIRE AND DIAMOND RING, CIRCA 1930

Centering an oval cabochon star sapphire weighing approximately 13.75 carats, flanked by old European-cut and single-cut diamonds weighing approximately 0.60 carat, with partial maker's mark and/or assay marks, size 5 3/4

Footnotes

OVERALL CONDITION:
Metal tested with XRF (X-ray fluorescence) for platinum; superficial wear in the form of minor scratches; overall good condition.

MAJOR COLORED GEMSTONE: star sapphire
Approximate Dimensions: 14.5 x 11.85 x 7.7 mm
Clarity: slightly to moderately included
Hue: greyish violetish blue
Asterism: moderately-well defined six-ray star

ACCENT DIAMONDS: old European-cut and single-cut
Approximate overall color and clarity: H-I, VS-I

ADDITIONAL INFORMATION:
Approximate gross weight: 6.6 grams

This condition report is provided for your convenience based on the opinion of our gemologists. Bonhams is not responsible for any discrepancies between this information and other opinions.

Additional information

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