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 Bronzite Twig Ring $1,795.00 Sold Aquamarine Crystal Ring $2,350.00 Spessartine Garnet Ring $1,425.00 Sold Chinese Turquoise $1,795.00 Rutilated Quartz Ring $1,650.00