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AN ART DECO BLACK ONYX, DIAMOND AND CORAL FIBULA PIN
The black onyx open ring applied with cabochon red coral and pavé-set diamond geometric detail to the pavé-set diamond, black onyx and red coral stylised arrowhead terminal, mounted in platinum, circa 1925 (black onyx with one small conchoidal fracture) with French assay marks
The black onyx open ring applied with cabochon red coral and pavé-set diamond geometric detail to the pavé-set diamond, black onyx and red coral stylised arrowhead terminal, mounted in platinum, circa 1925 (black onyx with one small conchoidal fracture) with French assay marks