Spider Web Turquoise Bracelet in Sterling Silver

Vintage sterling silver cuff bracelet set with a deep blue spider web turquoise stone. The bracelet is stamped inside with a Taxco, Mexico mark. I think that this may be a marriage and the stone and setting is Navajo and was added later. Just a hunch. 

The stone and setting measures 1 1/8" Wide. The interior of the cuff is 5 7/8" long plus the opening of 1" It weighs 26.5 grams. Tarnished.