Anthroplogie Cream Embroidered Top/T-shirt

This is a gorgeous top from Anthropologie. There is a satin/silk based and embroidery around the neckline that extends all the way around the back. There are two snaps at the neck. It looks like there is a small discoloration at the top snap, but it is the same color as some of the embroidery thread so it is hard to tell if there is thread on the inside showing through or discoloration. I've worn these top a few times and never noticed it until today. See in close up in the photos.