The demantoid and diamond cluster is circa 1890, and the shank is a modern replacement (14K gold).
The ring features a very rare cabochon cut Russian demantoid garnet (5.45 - 5.6 x 3 mm, approximately 0.96 ct) with a bold chatoyancy - cat's eye effect.
Parallel "horsetail" inclusions produce a cat's eye effect.
The demantoid is surrounded by 8 old mine diamonds with estimated total weight of 0.70 ct.
Diameter of the cluster 10 mm (7/16 in.)
US ring size 5 3/4 (16 mm)
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Antique and Vintage Jewelry, Russian Imperial Era Antiques, Pre-1917 Faberge
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