ANo clue, I can't see very clearly on my phone, but that's an adorable little cake. One panel looks like cut out circles, and another looks like indented circles, but again, not sure. Could be my tiny screen playing tricks on my eyes.

I agree with AZ - it looks like little circles cut out and stuck on close together.  If you look at the top edge, you'll see it's not quite even, showing the shape of the circles, which you wouldn't expect with an impression mat.

I know the ivory/gold tiers are little circles.  I'm asking about the purple tier???????

And I'm replying about the purple tier...

It looks like a cobblestone impression mat to me, but I could be mistaken.

A

The cake is by ConnieCupcakeLuxeryCakes - you could contact her.  www.conniecupcake.com
 

  She does gorgeous work.  Her minimum order is $1000.

Definitely individual pieces on the purple tier.

You mean......as in......I don't even turn on my oven for less than $1,000....

AYep. I believe maggie Austin has a 2500 minimum. Must be nice!

AIf you zoom in, each one of the purple circles is raised and has ridges on one side. It looks like piped shells to me. Maybe out of royal icing?