Untreated Natural Blue Topaz - 'AA' Grade - 250 Carat Lot | Lapidary for Cabbing, Tumbling, Wrapping Unheated and Untreated - Completely NATURAL Perfect for Tumbling, Cabochons, Wire Wrapping, Reiki or Collecting 100% Natural and Untreated Directly from the Mine 250 Carats of Material Containing Multiple Pieces Fantasia Rough - A Brand Trusted Worldwide