Sterling silver pear shaped promise ring in rose gold

I was gifted this ring so I’m not 100% sure if it is silver but it is stamped as S925. I also believe it has a rose gold plating I have had it for about a year and it’s still good no tarnish. The ring size is I believe between 4.5-5. Perfect for your ring finger and also to use as a travel engagement ring if you don’t want to take your real one.