Elegant Blue Pendant Necklace

I bought this amazing necklace for a little over $300 as a gift that I didn't end up gifting! I've worn it around my house once just to see if I would actually wear it and unfortunately it didn't pass the test, as I'm not big on longer necklaces. I can't remember what black stone is used in the gorgeous chain, but it contributed to the value, that's for sure. Beautiful on its own or would be a fantastic layering piece. Treat yourself or give it as a really unique and high end gift!