Wow!  This is a gorgeous faceted large Aquamarine Gemstone.  All Natural COLOR, the true Aqua color and not the typical oven heated blue color that is usually seen.  The size is 38 carats, most of the 'blue' colored Aquamarine on the market size is only a carat or two, so this one is very large and very unusual. Can easily be made into a pendant to wear on your throat chakra, will allow you to speak your heart and to express yourself to others!