The circular logo is not one I have run across myself, but what struck me about your belt was the attention to detail. The engraved trademark (chain of interlocking Greek symbols) on the buckle and strap is a signature or sort and that symbol is one I see on authentic Versace labels. The picture (of the black coat's quilted lining) that I posted above is missing it, which caused me concern.
Fake or Real (Authentic, Genuine, etc.) -- Official Authentication Thread - Page 67
eabdulla I'm running across the gianni versace name on a lot of jacket tags on ebay. My experience with other brands says slight changes of the name or different versions of the name are fake unless it's a denoted diffusion line or collection. However, I just bought a "Versace Collection" suit and there were several other lines with diffusion-esque names. So don't rule it out solely because of that. It may just be an old line. If it's in your possession maybe call in to a store for an in person legit check if you're within driving distance. That's what I'm planning on doing with the suit just in case. There are so many well done replicas now...