Mine was right around $90 usd delivered. It is 23 mm, curved, and has the same double springbars and inside markings as the original.
For this price it also came with the deployant clasp, which I wasn't expecting (I was planning on swapping the one off the original black strap).
Here's another pic:
I had to order it through an AD, which I just picked a few nearby ones from the FC official website and requested a price. Only one ever got back to me, but in the end I'm happy. The salesman I worked with mentioned that a lighter brown strap was also available.