Most of the time yarn is also listed with plies as well as by weight, which appears to be a little subjective based on the seller.

Right now I am knitting this in Malabrigo Sock "Persia, which is a green and bronze-ish colorway. It's pretty! I hope I don't run out of yarn!

My well-behaved women earrings are dangly -- they're slightly curved strips of silver, and one has "well-behaved women" etched onto it, and the other one has "rarely make history." I LOVE THEM.