Shop › Boulder Opal Ring in 22k and sterling silver Image 1 of 2 Image 2 of 2 Boulder Opal Ring in 22k and sterling silver $1,650.00 Sold Length .70" x height .70" x width .18", 22 karat gold and sterling silverSize 7 Sold Added! Length .70" x height .70" x width .18", 22 karat gold and sterling silverSize 7 You Might Also Like Surface Tourmaline Ring $1,995.00 Sold Spessartine Garnet Ring $1,425.00 Sold Rutilated Quartz ring $2,195.00 Prehnite Ring $1,950.00 Meadowflower Ring $2,150.00 Sold