Titanic Hotels is behind Titanic Yamas | Melek Düvenci̇ Architects in Belek (2023). It is not a DIJA project — we had no hand in supplying it — but the record is specific enough about materials to be worth reading.
The archive credits the architect and the build, but stops short of naming the specific stones used — not unusual for a project this size.
With no documented stone type to go on, a few general suggestions from our own range that would suit a project of this kind: Calacatta Oro, Travertine Classic Beige, Nero Marquina.
The architect's own account, and the photography that goes with it, is one click away at the source link.