3.0 I like Helzberg's, but I don't love that they do not warranty their products for virtually any length of time Unless of course you pay out added with the lifetime guarantee. I bought my granddaughter an "H" necklace & fewer than 3 months afterwards, the chain clasp broke. I'd https://flenzy.store/chic-retro-hollow-heart-pendant-necklace-for-women/