Like mosaic tiles
I believe the answer is:
inlaid
'like mosaic tiles' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for inlaid that I've seen before include "Decorated with inset pieces" , "Chased" , "Decorated with embedded materials" , "Set into the surface for decoration" , "Adorned with inserted wood etc" .)