Modern 4.45 Round Brilliant Cut Aquamarine Ring in PlatinumThis modern aquamarine and platinum ring is simple and tailored in its design. The center 4. 45 carat aquamarine is a round cut stone set in a high polish platinum bezel. The aquamarine is a crystal clear grey blue and is full of brilliance. The half round shank meets the bezel and lifts the stone above the finger. The ring is finished with a high polish and is a size ten (10); sizable within three ring sizes.