RARE crystal pipe opal & quartz ring (sizes 7 to 10)This unique handmade ring features a rare Australian crystal pipe opal and quartz crystal point set in 14K gold fill with sterling silver prongs. The ring has a discreet and comfortable adjustable band and is suitable for ring sizes 7 to 10. Gold fill provides a much thicker layer of gold than gold plated and should not wear off with proper care. Australian crystal pipe opals are highly coveted and not easy to obtain. Mother Nature only created pipe