Store › # - 5139 Dioptase Image 1 of 2 Image 2 of 2 # - 5139 Dioptase $60.00 This spectacular specimen of vivid green specimen of dioptase crystals on matrix was sourced from the D.R.C. in Africa. Add To Cart Added! This spectacular specimen of vivid green specimen of dioptase crystals on matrix was sourced from the D.R.C. in Africa.