Emerald Cut Halo Diamond Ring .26 Cttw 14K White Gold 380A14K White Gold . 26cttw Emerald Cut Halo Diamond Engagement Ring. This wonderfully simple, classic style features . 26cttw of round diamonds prong set down the shank and surrounding the center diamond. The star of the show is designed to be a 1. 25ct emerald cut center diamond set in a secure 4 prong head. All accent diamonds are F G in color and SI in clarity. Also available in yellow or rose gold, and platinum, either two tone or single metal color