Petrified wood measures 32.81 x 23.32 mm. No purity stamp, positive test for sterling silver. Stunning unique great quality bracelet for your Native American jewelry collection! All listings are described to the best of our knowledge and ability. We take detailed pictures of each item for your confidence and convenience.Please check all pictures of item of your interest and consider them as a part of description. International Buyers - Please Note. Thank you for shopping with us!