Brooch is made of natural Blue Lace & Chalcedony stones.
It also has hook in the back and can be hooked to any of your favorite necklace chain and worn as a pendant!
Stamped with designer name in the back.
Pin is about 3 ½ inches in diameter.
For a greater look pin it to Blue Lace & Chalcedony Necklace by Simon Tu.(Last pictures)