The armoire itself is easy, a modest wood or mirrored cabinet most movers handle without a second thought. What actually matters is that jewelry, especially anything valuable or sentimental, should never ride in a moving truck at all.
Pro tip: If the armoire has a built-in lock and mirror, insure it separately as an antique or specialty item if it has meaningful value, since standard mover liability coverage is minimal.
Watch out: Never pack actual jewelry into the moving truck, even in a locked armoire; movers are generally not liable for jewelry, and it is also the single most common item lost or, rarely, stolen during a move.