Rough Sterling Opal is produced in pieces that measure approximately 1 ½” by 2” wide and up to ¼” thick. Each Sterling Opal lot will have the same appearance or look, but each stone is individual in its character. Both our dark and light stone is produced in hues of red, blue, green, purple and gold all with amazing play of color. The authentic appearance, exciting play of color and consistent supply are why Sterling Opal is a desirable stone choice for jewelry manufacturers worldwide. Please contact us for stone availability and pricing. Commercial quantities are available by lot.