The Midnight Collection Midnight Aquamarine Ring. Graziela Gems statement ring. 18-karat white gold hardware. G-H pavé-set white diamonds. Midnight aquamarine and tourmaline. 2.51 total aquamarine carat weight. 1.56 total diamond carat weight. 0.30 total tourmaline carat weight. Approx. 1.25"H x 1"W. Imported.