Vintage Onyx and Diamond Rectangular Ring

This 14-karat yellow gold vintage ring features (1) round diamond, measuring 2mm and (1) onyx, measuring 14 x 9.5 mm. The (1) round brilliant cut diamond measures 2mm for a calculated weight of 0.03 carats with quality characteristics H/I color and I clarity. Finger size 4.25. Stamped "14K".