Hi I was wondering if anyone knew how the bottom tier design was made?  Was it using a mold,  if so does anyone know where I could purchase one?

Looks like royal icing, not a mold.  It looks over piped and dusted as well.

Definitely not a mold.

If you look at it closely you can see the icing build up and little peaks on the dots.  A mold wouldn't look like that.

I agree, it's definitely hand-piped. If you find a similar pattern on line that you can print off and place parchment/tracing paper over it, you'd be amazed how much your piping improves with a bit of practice.  It's so worth putting a bit of time into.

It could be either. I have seen hand piping done like this, but I do know that there are molds out there you can use to. It just depends on what you want to do and if you have time.

This link will show you some molds you can use if you do not want to do piping. 

http://www.globalsugarart.com/borders-and-lace-c-630_632.html

Hand piped. You can see tiny imperfections if you look really carefully.

I would guess that the decorator printed out a template in two sizes, one for the tiara and one for the base tier.

No way is it a mold.

AIt's piped with sugar gems probably isomalt

So piped, probably over a template, on wax paper, curved around a pan or dummy, dried, painted/dusted, peeled, slid around cake?

AI think its a mixture of both a mold and piping. If you are looking to create something similar try doing a search for a Tiara mold or princess crown mold and you should be able to find which your looking for.

Thank you everyone for your help.

AIt hurts my brain to think that somebody could pipe that well!!!! Omg