2 PAIR NICE COSTUME EARINGS, EUC, Silvertone and blue stone, marcasite

These are not 925 sterling, the small ones were probably plated because the series look like copper beneath. The rest of the earring looks like silver and MARCASITE, so that is why I think plated. The large ones looks like faux Lapis Lazuli stones (very nice-you could easily swear these with Lapis neckkace or bracelet.