3.0 I like Helzberg's, but I don't like that they don't guarantee their products for virtually any length of time Unless of course you spend extra for your lifetime guarantee. I purchased my granddaughter an "H" necklace & under three months later, the chain clasp broke. I had read assessments https://boca-orthopedic-surgeon-n77431.liberty-blog.com/31896854/detailed-notes-on-silver-necklaces-womens