Alex,

Avoid direct sunlight!
Avoid direct fluorescent lighting!
Avoid direct halogen lighting!
Avoid direct incandescent lighting!
Avoid direct LED lighting!

These will affect the pigments of inlays. They will turn white inlays to yellow, then brown!

While you can buy UV treated glass and plastic, be advised that any of the lightings above, will still have a negative effect, but it will take longer.

It is best to use UV treated glass or plastic and ONLY indirect lighting.