hello everyone! I am new here and this is my first time posting anything. 

So, I am making tiered cake stands out of thick vases and attaching crystals to the side for a wedding. However, the couple wants to have the largest cake (14") on the highest tier. I know that usually the biggest cake stays on the table or is the lowest tier, so I am just wondering is it possible to put the 14" inch cake on the highest tier? The highest tier is about 24 inches. I think it is possible to do it, I just dont know if its a good idea. 

So are you saying that the cake will not be stacked and each tier will be separate on its own cake stand?  If this is correct and the 14" will be placed on a 2 foot high stand, it would depend on the diameter of the cake stand and how sturdy and heavy it is.  If it is wobbly, light and not very stable then I would not put a cake on it.

AIt is a pretty wide and sturdy vase. I just wanted to see if anyone thought it was a terrible idea. Just looking for people's opinions. Thanks for replying! :)

AHow wide is the 24" vase?

Really we would need to find out how wide at the bottom and the top - the diameter where the vase touches the table, and the diameter where it would be supporting the cake...

I haven`t seen the vase 24" tall wider than 6" at the bottom, and think, 14" cake is very, very heavy to put on 24" tall vase.

AIts 7.5 inches wide at the top and bottom . it's a bottom heavy vase.

ASomeone at a local cake store suggested I attach something sturdy that is 14" to the vase that way the cake is sitting on something other than the vase. In theory That sounds like a good idea... I just have no idea since I've never done this before.

Maybe you can get 2 - 14" acrylic disks and glue them on the bottom and top of vase, then load the "stand" with 2 5 lb. bags of sugar ( or anything heavy) about 10 lb., and see if it is going to hold up well.

AThat sounds like a great Idea! Thanks for the help guys! :)

AI never use a cake stand for tiers larger than 13 inches. they are very heavy and I don't trust them at all.

If you think about diameters you will notice that porcelain cake stands have a pretty small one yet it can take the weight of 3 tiers. I think a heavy based vase should be able to take the weight of a single 14'' cake. Try it out with a 14'' pot filled with water.

AThat is a great idea! Thank you!