This older Miracle pin is gold-washed pewter with a sparkling foil-backed topaz rhinestone in the center. The other stones are moonstone, carnelian, striped agate, two different kinds of jasper and amber. I believe these stones are real but if not, they are superb examples of art glass. The pin has a 1-1/4 inch diameter, and can be used as either a necklace pendant or brooch. It is marked "MirACLe" on the back (the "i" and "r" are in slightly smaller letters than the rest). The pin could stand some polishing, which I will do before shipping unless requested otherwise. And outstanding Celtic brooch!