This size 6 3/4 sterling silver and turquoise 2-split plain shank ring has a green free-form cabochon that has lots of golden brown matrix, twisted wire and swirls. The ring is 1 1/4" by 15/16" and the cabochon is about 7/8" by 9/16". The ring has no hallmark, however, it was created by my late friend Jim Taylor who used only sterling silver!