Apologies if this is advice where it is unwanted. But I saw the newb in your signature, so I'll take a risk and try to help...
I do not have deep pockets. So I'm down with trying to fine good prices for corals. But this is actually a cottage industry, and there is some consistency in pricing across vendors. What that means to us the consumer, is that if we are not paying for it, there's a very, very high probability that we are not getting it.
Now what about "it" - our expectations vs. what's delivered - might we lose? The list is long: health, color, size, the product actually looking like the picture, the vendor's willingness to send replacements for DOAs or after shipping problems, or any combination of those things.
So saving money on coral is cool. Just don't be surprised if disappointment happens.
Good luck though.