This is a beautiful hat-shaped brooch with gold glitter. It is an antique item from over 25 years ago. There are no noticeable scratches or stains. A flower is engraved on the back. ◆Size Approximately 6.8cm x 3.3cm Weight: 12.5g I did not purchase this myself and have not had it appraised, so I am sorry, but I do not know the material of the stone. Thank you for your understanding. Please feel free to comment if you have any questions.