Emerald Cut Demi Three-Quarter Coverage Diamond Engagement Ring (1/3 ct. tw.) - 14K Rose Gold. This elegant engagement ring features a glittering hidden halo of diamonds that wraps around the center gem. A petite band complements the gallery for an elegant, chic look (1/3 total carat weight). Our perfect fit engagement rings are carefully designed to sit flush against a variety of wedding rings for a seamless look with no gaps.