Christian DIOR Brooch/ Pin

Studded Gilt Purchased Holt Renfrew, Yorkdale, 1990 Rare aprox. 2" X 2" I have been the only owner Stamped Christian DIOR & Germany This has not been worn much & not for years. It has been stored well, in my jewelry wardrobe. Silver behind some stones beginning to get a darker patina with time. No box, we didn't save boxes or receipts in those days.