Oscar Heyman, diamond and sapphire dome ring ca All of his work is unique, well designed, and of great quality. He immigrated to the US from Eastern Europe. He learned his trade studying at a Faberge workshop in Russia.
Belle Epoque Ceylon Sapphire and Diamond Cluster Ring. A stunning ring composed of a large central, oval mixed cut Ceylon sapphire mounted within a delicate and intricate pierced surmount of single and old cut diamonds.