Aquamarine Diamond Ring CR04006. This is an 18Kt white gold ring of refined elegance with an oval aquamarine of medium blue color and unparalleled brilliance. The geometric courtship of pave set diamonds and white gold reflect the true beauty of this ring. The aquamarine weighs 1.00 carat and the total diamond weight 0.45 carat, G color grade VS1 clarity grade. Gold weight 6.3 grams.