Secret treasures 36C corset type sparkly black glitter lace Sheer bandeau bra

I'm not sure what this type of bra is called, maybe a balconette? it was hard to capture it's beauty on the photos. I tried it on to try to show it better, but it's not my size. it has some wear and is a bit stretched, or maybe there's just a gap there for me under the arm as I'm showing in photo, because I wear a 32 band instead of 36. thanks for looking