Identification: Succulent but what kind and name?

I bought this plant today. I know it is a succulent but what type and what is the scientific name and variety?

 

Echeveria, I think. I don't know much about that genus and I cannot say exactly what it is, but your plant resembles a popular cultivar called 'Black Prince', take a look at that.

 

Thank you for your help.

 

Yeap, an Echeveria Black Prince alright - Echeveria 'Black Prince' (Black Hens and Chicks) | World of Succulents