Jewelry Boutique

My boyfriend recently purchased a necklace for me at a local mall. He told me it cost him upwards of $1000 yet I cannot find the store where this necklace would have been bought online. Is it possible that it is not from a 2011 catalog but still sold in the store? It looks like it is about 30 garnets in a silver setting with small diamonds between the garnets - kind of like a tennis bracelet for your neck. It's gorgeous but the setting doesn't leave much room for the gems to breath and I don't know how to tell myself if it's real or if he's trying to be sweet and impress me but getting so caught up with that that he's not being 100% honest. I'd trust him with my life but I've never been given much so when I am I always tend to second guess it. The setting on a couple of the garnets look off and that is ultimately what made me suspicious in the first place. Any ideas?