i am an NC47 but I usually will do one of two things:
1) pair it with a dark brown lip liner and then after putting on stone, I will put a brownish pink, lip cover in the center of my lips.
2) Pair it with a dark purple lip liner and then put some purple in the center...
I love Stone but it can definitely take some getting used to especially since it's such a cool color to begin with! I say use Stone to outline ur lips and blend in, then use a light pasty nude shade like Myth in the middle and blend to ur liking, add a bead of clear lipglass to soften the overall look. Easy and flattering