Only the applied rim of the vase is blue, the body is a very deep purple, the sort that is supposed to be black. You have to hold it to a very strong light source to find that it is purple.
There are no other colours. The iridesence and the patterns stop at the edge of the base and do not continue around it. It is pretty much just flat and black. With a long, rectangular, gold "30 year anniversary" sticker. Everything on the surface is iridescent. All the swirls and the background. Not the applied rim.
Suzy's pink Mosaic purse vase was white inside.
All things considered, I think we're in agreement, John. It's the technique and the
swirls which define it, rather than the specific background colours per se.

This is a Silver Mosaic paperweight.
