Most any competent setter or jeweler can set your Asha diamond simulant for you - if they can set a CZ, they can set an Asha which is more durable than regular CZ. There are just a few tips needed.
We've got a complete set of helpful tips (and a printer ready page as well) that you can print and give to them, and it will give all the info needed - you can view the online page here (link to the printer page is on this page as well):
One primary item - you must inform the jeweler or setter that it is a simulant, and not a diamond. We have had experience with customer's jewelers contacting us in a panic after damaging an Asha while setting it, stating that they did not realize it was not a diamond, and thus treated it like a diamond (i.e. exposed to high heat) rather than a simulant.
While this is further feedback that the Asha really does look just like a diamond, you don't want to have your Asha damaged by not being up front with your jeweler or setter.