Emerald Cut Crossover Shank Halo Diamond Ring .69 Cttw 382A14K White Gold . 69cttw Emerald Cut Halo Diamond Engagement Ring with Crossover Shank. A modern style with vintage callbacks, this ring features . 69cttw of round diamonds prong set down a crossover shank and flowing into a halo surrounding the center diamond. The star of the show will be a 1ct emerald cut center diamond set in a secure split 4 prong head. All accent diamonds are F G in color and SI in clarity. Also available in yellow or rose gold,