Than extraordinary turquoise stone mined from the Carico Lake mine in Nevada.  It is a very large and superb stone coming from that mine.  There aren't that many this large anymore.  I know that because I had matching pieces that were marked "Carico Lake Mine".  The turquoise that comes from this mine is rated one of the best.  The mine produces varying colors from light green and blue to various darker shades of green.  The stones are highly praised and can be very expensive. The pendant itself measures 1.5 inches long and 1.13 inches wide.   It is stamped "ST" for Sterling.  It's on a beautiful Sterling Silver woven chain that measures 18 inches.  The chain is stamped "925" and is just a quality chain.   It has a spring ring closure. Together the pendant and chain weighs 20.33 grams.  It's pre-owned and in excellent condition.  It is a piece that surely will get noticed and that you can treasure forever.