Antique Victorian? Vintage Brooch Green Stones Gold Plated?

Welcome to my closet 😊 Thank you for visiting! In good condition with some slight repairs on the back. You can see the soldering if you look closely. There's also a couple of stones missing. I only see two missing. Please examine photos closely. It does have a c clasp. I believe it is probably gold plated and I don't know what the stones are. Simply a gorgeous brooch. I'm just learning about brooches so I'd appreciate any information about them so I can learn more. Thanks 😊