This cake is so dramatic and very sparkly, and yet so simple to create. If you like crystals and sparkle, tall and majestic cakes, but are on a budget, ask your cake designer to create this design with dummy cakes.
Suggest to your baker to make one of the lower cakes the one that you and the groom will cut and serve each other for formalities. Some of the lower cakes could also be real cake used to serve your guests.
However, after purchasing your own crystals and providing it to your cake designer, the real cost savings come in not only the faux cakes, but in the simplicity of each cake.
But once you add that bling...it is no longer just another cake......
See http://bridalblog.mjtrim.com/2010/09/09/embellishing-your-wedding-cake/ for more details