Hadley & Cattrail, yes I'm sure he could. I just felt bad because I didn't wait for his answer and just ordered the ring. He came back to me and apologized for not answering sooner and offered a full refund because of it. He also is extremely accommodating; offering a few ideas & services for free. He is sending me the ring with a high quality CZ in it so I can see how it looks before we make any changes. That is wonderful to me because I really should see how the ring looks on my hand before modifying it.
I also think the inner halo idea is growing on me. I'm getting really excited

Does he have a website for his jewelry besides ebay? I didn't really see any.
Thanks again to all of you for your thoughts & suggestions, you guys rock!