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An uncut un-shaped gemstone of gem grade is called ‘rough'. It is the stone in its natural form, often found in the ground, just as mother nature made. They are often called raw gems but the proper name is rough. A gemstone (also called a gem, fine gem, jewel, precious stone, or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. ... Rarity is another characteristic that lends value to a gemstone. Gemstones are valuable: A lot of time, effort, and information go into mining gemstones. ... As the cost of mining rises, these natural gemstones are harder to come by. Their value is constantly rising due to their scarcity, so one can make a profit from selling them as well. Another definition of 'rare' is that of an item being 'unusually good or remarkable'. In a world where new deposits of gem materials appear to be discovered every month, this is potentially the most relevant application of the term 'rarity' in the business as a whole. To identify a rough gemstone, review its mineral qualities, inspect its streak and examine its luster. Each gemstone has its own particular set of qualities you can catalog to help you with identification. Check with your state's department of mines and minerals to locate regions suitable for rockhounding in your area.