Gold Rope Chain 24" (a little longer when you add clasp length) Lobster clasp 10K Gold 7.6 grams Lighweight 4mm This was my 17 year old son's gold chain.  He purchased it last year after Christmas with his Christmas money. He paid $960 + tax on sale at a jewelry store. (It had an original price tag of around $1,600) He loved this chain, but is saving up for a new car and decided to sell it.  It is in excellent condition and very nice! I will package carefully and ship quickly! **I just took this chain to my jeweler to get an appraisal. He said it would be $80 to give me a written appraisal, but verified the information on the chain. He said it is 10K, 4mm, 7.6 grams and he said it was a lightweight chain. He said they would sell it for about $800 new in their store. If you purchase for $500/free shipping on Poshmark, Poshmark will authenticate the item. The seller sends the item to Poshmark. Poshmark authenticates it, repackage it and send it to the buyer. I have gone through this process as a seller several times. It usually takes about a week to a week and a half total turnaround from purchase to authentication to arrival to buyer. I have a lot of confidence in the process for both buyer and seller!