If you are referring to one on rock it looks like a mycedium. Very close looks to the riddler or flying saucer, but not exactly. It is only a named chalice if it was bought with a name. So many mycedium chalices look alike. The one on the sand bed is a favia type.
The one on the crevice appears to be a watermelon favia. Other two look rather similar. Give it time to color up. I've had war coral favias come in brown then turn red and white.