Herringbone necklace 23 inches long

This necklace IS NOT 10 or 14 kt gold 18 kt gold filled This necklace will not tarnish I have one just like it If you sweat shower and abuse the necklace then it will leave a black mark on your neck thats only after sweating on it for 6 hours at work but the necklace its self will not tarnish or turn green If you dont sweat in it continually then it will not turn your neck black but like i said the necklace itself remains the color it is gold no matter what abuse you expose it to. I have worn mine in chlorine pool never had any discoloration issues. There is 18 kt gold in this necklace so that means there are other metals mixed with it that is why it will leave a black mark not green on your neck after sweating in it for numerous hours .. really it might have been the dust i work with that collected under my necklace and that may be what turned my skin black now that i think about it.. i can only share my experience ive had with my necklace personally .. i learned on youtube if you cant afford the 14 kt gold then 18 kt was a cheaper alternative so thats what ive bought past few years The necklace i ship to you will not have been worn by anyone it comes in original packaging but its nothing more than a small ziplock I have 2 of these left and they will not last long