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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

Sold for US$3,840 inc. premium

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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.

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