Companion and Family Headstones, aka Double Upright Die with Base.
These upright style gravestones are common for couples or for two or more family members. Most cemeteries require a double grave plot for this style.

Mahogany gravestone Red Granite Memorial
pink granite gravestone gray granite die and base
mahogany granite companion headstone mountain rose granite tombstone
pink memorial stone  pink granite headstone
mountain rose granite die and base red granite double upright tablet