jennifer,
I wouldn't buy it. They're asking good, hard-earned money for something which you WILL NEVER KNOW FOR SURE is a bona fide Tiffany creation.
The photographs are few and terrible, which makes me suspicious right away. I like sellers with many clear close-up photos, who deliberately highlight flaws in their items.
Try not to see only what you want to see. It's helpful, when buying on eBay, to *assume the worst*, if something isn't clear.
Faking an 18K clasp by putting "T&Co" on it can't be that difficult.
I don't know if Tiffany does this, but I bought a Cartier rolling ring years ago, and it came with a small, square plastic card with all kinds of marks and a serial number on it, in addition to the trademark packaging. It might be good to do some research and see whether Tiffany issues similar identifiers.
You may want to contact Tiffany's to see when and whether they marketed necklaces of that size, length, and with that clasp. Ask Tiffany's for descriptions of any certificates which may have accompanied similar necklaces. Then, ask the eBay seller if they have the relevant certificate, and see if it sounds similar to Tiffany's description.
If you are dead-set on Tiffany, I say save your money, go to a Tiffany's store, and buy the real thing. You will have no nagging doubts about whether or not you were "had" by an eBay seller. As you age, you will KNOW you have the real thing.
After the thrill of owning a real Tiffany wears out, I *guarantee* you will realize that *value* and not name brands are where it's at. There is no magic to name brands--only illusory magic fostered by our own insecurity.
There are several, *wonderful* online dealers who can sell you guaranteed quality items--magnificent items, for the same money you are thinking of spending on a used, potentially worn necklace!!!
Please please please think twice!!!
CarolK
