Grand 1930's 14k White Gold Natural Onyx Diamond Filigree Ring

A statement making 1930's onyx and diamond ring crafted of 14k white gold (stamped "14k"). Gorgeous design details. Features a flat natural onyx slab. Accented with one natural old cut diamond. Measures approximately 26mm lengthwise on top of finger. Ring size is 8. Weighs 6.6 grams. One of the decorative leaves is missing.