This is a man's tie tack.  It is small, measuring appx. 7/16" by 3/8".   It is silvertone and has a small genuine diamond in the center.   I does not look used.  It comes with its original case.   The original price was $34.99.   Very good condition.   Shipping is $4.00 if within the USA.  Check out my other listed items.   You may wish to visit my wife's Ebay site at:   vmelix      She has quite a few interesting items listed.     Please add me to your favorites list.