I'm guessing 16in to 18in, everything that I posy is left overs from my mother's jewelry business, it never got off the ground cause nobody wanted to actually pay what they are worth, the pearls are real yes, the only things I don't know is if these are fresh or salt water, she has both. Some of these strands are worth $200 plus. So yes I would say they are, a pretty great deal when you're not actually buying with real cash