What are the stamped markings on the inside of my Turquoise Ring. On the inside of the band, and on the side of the band, there appears to be an diamond shape, and in the center of the diamond it looks like a flower, and on the inside of the diamond at each end if looks like a 4-leaf clover. On the other side of the ring is a stamped "7", which is the size of the ring. But I have no clue about the diamond shape.