RARE gem silica ring in 14K gold-fill (sizes 4-3/4 to 6-3/4)This unique handmade ring features a rare gem silica set in 14K gold fill. Gem silica is considered one of the most valuable forms of chalcedony due to its blue green color, often resembling the color of tropical ocean waters. Due to its rarity, it is often expensive and highly sought after. The ring has a discreet and comfortable adjustable band and is suitable for ring sizes 4 3 4 to 6 3 4. Gold fill provides a much thicker layer of gold than gold