The sparkle from this brooch is a WOW! The brooch can be worn either “square” or “angled” because the pin on the back moves. The Rivoli shaped rhinestones capture the light & change colors. The clear rhinestones are prong set. The gold backing has a round opening for each Rivoli rhinestone. The gold backing is shiny without signs of wear. Unsigned. 1 7/8” square.