Cross and heart costume necklace

This necklace has marking on the back that I cannot read. The metal is bronze but the color is goldtone. I am not sure what the stones are. Sometimes they appear pink and not red. I don’t have a stone tester but these didn’t glow under a black light and I think it would have if it was rubies. On google I found this necklace with certificates stating it’s real however I can determine it to be a nicely made costume piece and am pricing it that way.