Has anyone used the Turquoise blue color from Daddio Brand? wonder if the blue is ok for a Tiffany cake.  

I don't know what it looks like but my daughter wanted a Tiffany blue cake for her 9th birthday and I had a hard time getting it right.  You can see the cake in my pictures. If you can get a fondant already dyed that color, I'd so do it.  

I dyed it myself in the cake I made. 

Following. I want to make myself a Tiffany cake for my birthday :) @kristiemarie ‍ How did you make your royal icing tiaras?

The royal icing ones I printed out/drew a tiara and taped it to an empty 2 liter with the side cut out so it wouldn't roll.  Then I put parchment paper over it, taped it down and piped into that.  

The tiaras on the cakes are fondant, although they are made the same way, using a 2 liter.