3.0 I like Helzberg's, but I do not like that they don't guarantee their products for just about any length of time unless you shell out more for the lifetime guarantee. I purchased my granddaughter an "H" necklace & a lot less than 3 months later, the chain clasp broke. https://types-of-ransomware77542.tblogz.com/aquamarine-jewelry-for-dummies-45704004