Harry, that is a beautiful box! I love the inlay. So far I've only been able to manage those out of granite.
Here's (another) stupid question: How did you make the inlay itself, or did you?
I would love to be able to present my customers with a box inlaid with a matching design of their tile work - that would definitely leave an impression.
(Please let me know if I should start a separate thread for this question.)