Huge vintage signed Navajo cuff bracelet. It is set with a large natural turquoise stone with light colored and rust  chert matrix that is swirled and mottled through the stone. So unusual! And check this out: The 47 little faceted stones that frame this turquoise stone are black DIAMONDS! (Tested with a gem tester)

It is hallmarked BY E.P.. The cuff is oh hand wrought silver in a simple cage desing the balances the stone well. 

Interior measures 5 1/4" plus the opening of 1 1/2". It is 2 3/8" wide. Stone is 50mm by 37mm. Weight: 46.1 grams.