This is a large high grade Royston Turquoise Cabochon hand cut by John Hartman of Durango Silver Company. It measures approximately 35mm x 40mm and would make an excellent Royston Turquoise Buckle or Bracelet. It weighs 83 carats and is priced at $2.00 per carat. The white matrix in the stone is most unusual and looks like Islands in a sea of Turquoise water - very attractive!