Los Castillo designed a very special grouping of Pre-Columbian artifact pieces of jewelry of which this is one. All one of a kind and signed as shown. This piece also shows a collaboration with Salvador Teran as this is his bracelet design. In the new book DREAMING IN SILVER by Penny Morrill she shows a bracelet in collaboration with Teran and marked with Los Castillo. You can also see Teran accessing Castillo's Social Co-op hallmark on some designs. The stone in this bracelet has sparkles inside naturally and is 1.25in. across the top and stands off the bracelet 1in. high. There is a 2.5in. inside diameter. The stone is further wrapped with an ingenious rod of silver swirling in, over and around the featured Pre Columbian stone. Weight is 91 grams. No damage and an absolute choice of Pre-Columbian collectors.