Neither a Gravestone nor a Graveyard emoji is available, but a Coffin ⚰ and an Urn ⚱ as well as “remains” (Skulls ☠️💀 and Ghost 👻), also several religious symbols, e.g. a Christian ✝️ and an Orthodox ☦️ Cross. There is a Headstone Graveyard Symbol in Unicode at U+26FC ⛼.
Neither a Gravestone nor a Graveyard emoji is available, but a Coffin ⚰ and an Urn ⚱ as well as “remains” (Skulls ☠️💀 and Ghost 👻), also several religious symbols, e.g. a Christian ✝️ and an Orthodox ☦️ Cross. There is a Headstone Graveyard Symbol in Unicode at U+26FC ⛼.