I recently bought a vintage VCA necklace from what I believe to be a well known and reputable preloved consignment store (including reviews from this forum). I was told that the necklace was about 20 years old, and so didn't have original box etc, and that the original owner was advised to send it to VCA in NY for cleaning/polishing (thus, there would be recent paperwork from VCA to confirm its authenticity). The original owner did so, and brought it to the consignment store in the package from the VCA store in NY with a receipt which includes an invoice number, as well as the serial number of the necklace, etc. However, I used Real Authenticate and they are calling the piece counterfeit due to "various inconsistencies" -the written report is pretty vague (and I had to pay extra $10 to get that information). I'm in shock and feeling kind of ill. Is it possible that Real Authentication is wrong, especially as it's an older piece? Assuming the receipt is real for the cleaning service at VCA, can I assume that VCA would NOT have cleaned the piece if they felt it was fake? Should I call the VCA store in NY to confirm that they did do this work (since I have the "invoice" number) or can I bring it to VCA for them to authenticate (somehow I feel super embarrassed to do so, but surely they do this for a fee on a regular basis?). This was my first preloved luxury purchase, also first VCA purchase, and at the moment I honestly just hate myself for finding myself in this position. Any advice would be much, much appreciated.