Vintage Sterling Silver and Turquoise Cuff Bracelet

Beautiful cuff bracelet. Stamped inside with ET STERLING. I think it is Navajo but have not confirmed. The cuff has floral and feather etching. The turquoise stone rises 1/4” off the cuff. It is polished but not rounded off- has bumps (easiest way to describe it). Inside of cuff measures 5 3/4”, with a gap of 1 1/4”. (Measurements are as accurate as possible). Weighs 13g (or .4oz). Can be carefully adjusted to fit.