1. Colours of tanned leathers, and cordovan in particular, tend to be within a range of variations, so one "cigar" shell wouldn't necessarily be identical to another, just close.
2. "Cigar" in Alden's shell cordovan terminology. It might be Horween's too, though I think they actually just give their colours numbers. Vass have their own colour terminology, so they will call their shell colours by the name of whatever is closest in their (more consistent) calf colours. For example, I've seen shoes made up in what appear to be "Saddle" and "Whisky" shell that have both been described by Vass as "Cognac".
3. Therefore, even if Vass have a colour that Alden or even Horween call "Cigar", they will call it something else. My guess would be "Antic Cognac", as that's the leather colour in their range that it most closely resembles. My advice to you is to ask them to send some daylight pictures of the shells they have in stock.