These beautiful California fire opal studs are such a stunner. Available in snow white and azul blue man-made opal with sterling silver and vermeil gold setting. California measures a 1/2 of an inch long and 1/8 of an inch wide. Studs are attached to a sterling silver or vermeil gold post with a butterfly backing. Ships attached to genuine brown leather. Looks amazing mixed with any of Mana's magical fire opal studs. Made in Austin, TX by Mana Culture.