What do the markings “925 CZ China” mean inside of a square with what looks like an M inside? Is the ring silver or gold and is the stone a diamond or
![2.5mm CZ Diamond Channel Style Wedding Band Sterling Silver Half Eternity Band Pave Band Silver Stacking Ring A29 - Etsy 2.5mm CZ Diamond Channel Style Wedding Band Sterling Silver Half Eternity Band Pave Band Silver Stacking Ring A29 - Etsy](https://i.etsystatic.com/8470539/r/il/093b0e/909982193/il_570xN.909982193_heyf.jpg)
2.5mm CZ Diamond Channel Style Wedding Band Sterling Silver Half Eternity Band Pave Band Silver Stacking Ring A29 - Etsy
![SweetJew Oval Shaped Elegant Halo Wedding Rings Set Engagement Ring 925 Sterling Silver AAAAA Cubic Zirconia Size J 1/2 : Amazon.co.uk: Fashion SweetJew Oval Shaped Elegant Halo Wedding Rings Set Engagement Ring 925 Sterling Silver AAAAA Cubic Zirconia Size J 1/2 : Amazon.co.uk: Fashion](https://m.media-amazon.com/images/I/81qu1HrsZ4L._AC_UY350_.jpg)
SweetJew Oval Shaped Elegant Halo Wedding Rings Set Engagement Ring 925 Sterling Silver AAAAA Cubic Zirconia Size J 1/2 : Amazon.co.uk: Fashion
![2.5mm CZ Diamond Channel Style Wedding Band Sterling Silver Half Eternity Band Pave Band Silver Stacking Ring A29 - Etsy 2.5mm CZ Diamond Channel Style Wedding Band Sterling Silver Half Eternity Band Pave Band Silver Stacking Ring A29 - Etsy](https://i.etsystatic.com/8470539/r/il/fccfc3/1110089868/il_fullxfull.1110089868_8iwj.jpg)