I didn't realize I had a bunch of Shimmer polishes - but I do! This is Katie, a mix of gray, green, and pink glitters in a clear base.
I started with Morgan Taylor REACTmax in Original, 2 coats of polish, and finished with cuccio High Gloss top coat. The brush is super fluffy and applied pretty well.
I think my grey turned gold! This polish is at least 12 years old, so I'm not surprised.
Shimmer has closed its shop and is no longer available for sale.