Sterling silver and rainbow moonstone stacking ringThese dainty little stacking rings are set with a gorgeous rainbow moonstone, and look absolutely beautiful when worn on their own, but equally fab to stack with plain bands, patterned bands or other stones. Mix and match to create your own individual style. The 5mm round moonstone sits on top of a 1. 5mm sterling silver band, which comes in a choice of plain round or hammer textured finish. made to order.