A myriad of subtle hues set off this alluring Rainbow Opal Teadrop Cross composed of Lab Opal stones set in Sterling Silver. Complete with 16" Sterling Silver Chain. 1 3/4" Long Rainbow Opal Teardrop Loop Earrings - Matching Loop Earrings made up of teardrop-shaped Lap Opal stones set in Sterling Silver. 7/8" Diam. Pierced Only. Rainbow Opal Teardrop Cross & Earring Set.