3.0 I like Helzberg's, but I don't like that they don't guarantee their products for almost any length of your time Except you pay extra with the lifetime warranty. I purchased my granddaughter an "H" necklace & under three months afterwards, the chain clasp broke. I had read testimonials stating https://flenzy.store/trendy-heart-pendant-long-chain-necklace-for-women/