All rings are sterling silver with dichroic glass cabochons. GZ just needs your ring size and preference for coloured cabochon in dichroic glass. After your ring is made (approx. 10 business days) we will send you a photo of the finished result. Upon approval, your ring will be shipped. (If you don't know your ring size, just measure the diameter of a ring that comfortably fits the finger you will wear one of our rings on.)