1960s Mined Blue Diamond Square Ring - The Blue Diamond mine is located south of Austin, Nevada, and produces a very hard light to deep blue turquoise, with an attractive swirl or mottled pattern. Silver petit-point balls run along the perimenter with small conchos at each corner. Finest silver, made in the USA by Native American designers. About 1 inch wide and tall. Size is in the 7-8 range.. Native American jewelry began not as ornamentation, but as strong symbol and story of the various nations'peoples. The fact that they are beautiful has drawn other peoples of North America to admire, emulate, and collect these finely made pieces. All of our Native American jewelry is represented to us as authentic and many artists are personal friends of owner Paulette Kiker. When we find vintage pieces like these, we are thrilled to be able to offer them to you.