I received this set from my mom through my aunt. I have tried to research David Yurman to see if this is authentic but I can not come to a "for sure" conclusion! Some websites say to look for (in order) D.Y. 925 which my pieces have. My pieces are also marked with 925 and 585, and copy right symbols. I am confused when it comes to one symbol in particular. If you notice on my necklace after the 925 585 there is a star, and on the bracelet there is a isosceles triangle??? I only see people mentioning the markers "star" and would figure each piece would have the same star. Why does my bracelet have a triangle? And why does the clasp that holds the pendant have wht looks like a "G" carved in it? They all look like really nice quality, deep groves and stamps and they polished up nicely. The amber color stone looks clear and shiny as well!? Please help!!!