Mid-Century Sardonyx Intaglio Cocktail Ring in 10k Yellow GoldThis extremely rare Mid Century Intaglio ring features an engraved sardonyx set in 10 karat yellow gold. Intaglio rings date as far back as 5000 BC and often depict Neoclassical impressions of warriors and emperors. This cocktail ring features a red sardonyx stone with a deep Vermillion hue. Sardonyx is banded gemstone and variety of chalcedony. This sardonyx features a Roman carving set in a bezel of 10 karat yellow gold. A sister to Cameo jewelry