Female bengal had a late night visit with my cat at the window

Yesterday morning (2am) I was visited by a beautiful bengal which from skimming through some earlier posts I think she goes by the name Topaz, but I'm not sure if this is her. I live just next to Harringay station and my own bengal is always sitting by the window (say hi as he always loves the attention!) so I think he may have attracted her to our home, however he has been neutered so therefore this is me just having a guess.

I was hoping if anyone could identify her and assure me that she has a home to go to as she has no collar and being a proud bengal cat owner myself I'd hate for her to get pinched (she was very willing to come have poke around in my home) or hurt.

Appreciate any assistance/comments!