1.64 GIA Diamond Halo Engagement Ring 18k PlatinumThis Victorian inspired engagement ring features a 1. 64 carat GIA certified old European cut diamond surrounded by a cluster halo in platinum and 18 karat yellow gold. The center diamond has a K color grade, which shows a faint warmth, and SI1 clarity with inclusions visible only under magnification. The old European cut creates a softer, romantic brilliance compared to modern cuts. Six old mine cut diamonds form the halotwo (2) . 21 carat stones and