Fantasia Materials: 1 pc of Prasiolite Green Amethyst Professional Facet Rough - 10-20 cts/pc - Grade 1 - Raw Natural Crystals for Faceting, Cabbing, Cutting, Lapidary, Polishing, Wire Wrapping, Reiki Hobbiest Prasiolite Green Amethyst Facet Rough Large Stone Size of 10-20 Carats Each! This Material Cuts Mostly VVS or IF Finished Stones Perfect for Faceting, Cabochons, Wire Wrapping, Reiki or Collecting Fantasia Quality - Trusted by Gem Cutters and Fine Jewelers Worldwide