They are on the pricey side- shocking I know, I love them, why would they be cheap?!?!? I digress. Anyhoo, the good news is there are some similar rugs out there.***Let me pause here to say that while I like the rugs below, they really don't compare to the Stark version and if I could afford it, I would take the Stark ANY day over the others
The one above (West Elm) I have used before in someone's home and it is great. The blue beauty below is from Home Decorators Collection and comes in other colors but I think the blue is eye catching.
Dash and Albert has several good diamond rugs, their range of colors is far better than most, they introduced a new color- Slate- at market that is my favorite. They are also indoor/outdoor, always a plus.
Speaking of outdoor/indoor rugs, these are from Pottery Barn and are outdoor rugs, although they have an indoor version as well.
This one (PB again) is not sisal , but I had to throw it in. Better yet is is on sale! 
Until my little budget grows, one of these will be coming home with me.....
