I buy based on what i see in the pictures, because it had a positive and a negative comment I take a chance to buy it, the chain looks great, impressive enough, it is not very heavy, because I don't have how to weigh it, i don't now if it weighs what it says, but if so, in my country a gram of gold is currently $ 50 (06/15/2012) then 10x50 = $ 500, if it really weighs 10 grams the price is right, i check on the internet about the jewelry of gold and between the "Tips" to be able to find says that if the jewelry is of good quality if it have print the place of manufacture, the karats and make, and I can say that this chain is all that .