Four oval 6x4 mm (0.24" x 0.16") Gorgeous Large Deep Blue Sapphires & one round 2 mm (0.08") Fiery Opal set in a Pure Solid English Sterling Silver Antique style setting. All Natural Sapphires and Genuine Australian Opal This is a most beautiful set of matching Deep Blue Sapphires which look Fabulous set against the Polished White Silver. High Quality English Sterling Silver. On the inside of the shank og the ring you will find the English Sterling Silver Hallmark, made by the London Assay Office which confirms the rings authenticity. The Hallmark includes the 925 marking plus the Leopards Head and the Royal Lion. Only High Quality Silver articles will have a Full marking such as this. The ring has been extremely well made, follow the ring round and you get a nice thick shank which indicates a quality design and a sign of durability and comfort. Whatãs more there's a beautiful well crafted carving on the shoulders of the ring that is absolutely gorgeous.