I'm sorry to hear about your loss. I dont know the specific place your talking about with the stone. But if you go to your local monument dealer/store they can do them too. The one by our house can custom design them and depending on size and such they're pretty affordable too. Hope you find what your looking for.
So sorry about your baby. You can order a catalog form Care-A-Lot Pet Supply. They have everything. They have the stones, monuments, even caskets. Hope you find the stone you want. I think you would be pleased with theirs if you can get the catalog. Their telephone number is 1-800-343-7680.
Hope, I'm sorry for your loss. I understand it all too well. I got a stone for Digit, our Newf, from this site. It is very nicely etched and affordable. If you are not happy with the results, you are refunded your $$$, and they will redo a new stone for you. Again, I am sorry for your loss, I know it is hard.