Both readers directed me to Jaan J, the home of luxury satin ties (and bowties). Jaan J makes three lines of ties: non-silk, signature collection, and narrow cotton. There are tons of non-silk ties on their website. I'm really into purple ties right now; as such, my favorite of the non-silk ties is this "checkered pattern stars and dots" tie (pictured left in the purple). The non-silk ties are $33.50.
The signature collection ties are $110. I think $110 is way too much to spend for a tie, but some of the signature collection ties are really gorgeous, such as this "paisley potential tie" (pictured right in the pink/silver/dark blue). That tie also comes in a gray/silver/dark blue combo.
The narrow cotton ties are $27.50. With a non-silk (satin) option available, I don't think I would wear a cotton tie. However, I don't think cotton ties are unprofessional -- it's a tie, after all -- although they definitely are less dressy.