The structure of this LPS coral is quite recognizeable, its shape strikingly geometric. Identified as Alveopora, this is often compared to Gonipora. Alveopora only have 12 'petals' per polyp, which is half as many as the Goniopora's polyp. This is a coral better suited for the experienced hobbyist, because its demands can better be met by consistently stable water quality. Metal Halide (intense) lighting is needed.
Here's another variation, photo by Tim Hom.