Costume gold toned red heart stone and clear rhinestone halo ring

A costume cocktail ring of gold toned metal and a red heart stone that did not test on the presidium gem tester. The clear rhinestones tested as glass. The ring is marked 18K gold electroplate. In good condition. Minor scratches on bottom of band. The red stone has a foil back and is faceted. A great costume ring. It is a size 9 and measures approximately 1/2in center.