I bought a Tiffany St. Christopher’s medal second hand on Tradesy because you can no longer buy them new at Tiffany and Co. After I bought it, I started reading about how much fake Tiffany jewelry is out there. It arrived and I’ve been reading article and article about ways to spot a fake, but I’m still so unsure and I only have a few days to return it based on Tradesy’s return policy. Help! It feels heavy enough in my hand, but I really know zero about jewelry and this is a gift, so I really don’t want to give it if it’s a fake. Does anyone have any opinions on whether this looks a fake or not? Or any suggestions?