This ring makes quite a statement! We have designed this with our Earth, Moon, and the surrounding space in mind. The Earth is represented by a lovely blue piece of Azurite Malachite, the moon by a gorgeous piece of Copper Calcite, and the dark glittering of space around them by black spinel. The ring best fits US size 7-8. Design size: 1 1/2" long (3.8cm) x 1/2" wide (1.2cm) Ring band size : US 7-8 Material: silver-plated brass, copper calcite, azurite malachite, black spinel Our jewelry is individually handcrafted and may slightly vary from the photographs. Our products are not waterproof - please avoid getting our pieces wet. All products will come with this care information.