I am offering a beautiful old brooch set in a scrolled frame. I believe the polished stone is agate; the orange and green color combination gives it a plaid look. I note no damage to the stone. There are some hairline natural veins running through, but I do not believe these are cracks. It is completed with a C clasp; I think this was once a rotating clasp that lost the center part. 2" x 1 1/2".