Three.0 I like Helzberg's, but I don't like that they don't warranty their products for almost any length of time Until you pay added for that lifetime guarantee. I bought my granddaughter an "H" necklace & a lot less than 3 months later, the chain clasp broke. I had read https://baidubookmark.com/story18499425/the-best-side-of-best-store-jewelry