This spell turns the flesh of a willing creature you touch as hard as stone. Until the spell ends, the target has resistance to nonmagical bludgeoning, piercing, and slashing damage.
As the diamond disintegrates in your grasp, its dust swirls around your target. Their skin transforms, hardening into a stone-like texture. Slate gray replaces their natural hue, and with an earthen creak, they stand shielded, resembling a creature of solid rock.