Oh, boy!  This is a wonderful, vintage Navajo made squash blossom necklace.  The stone is Blue Gem turquoise and has that lovely color and matrix it is so well known for.  The silver work is so pretty.  It has a very light patina but is quite old.  Previous owner told me probably 1930-40s.  Unsigned, which is usual for this time frame.  The length is 16″.  Width of the naja is almost 3.5″ . There are five squash on each side and the naja has eight stones.  Would be a delight to wear to that special southwestern function.