Princess Diamond Center Unique Square Halo With Milgrain Engagement Ring is made of 18K white gold. It contains a princess H, VS clarity diamond weighing 0.87 CT, princess G-H color, SI clarity diamonds weighing 0.50 CTTW, round G-H color, SI clarity diamonds weighing 0.65 CTTW, tapered baguette G, and VS clarity diamonds weighing 0.10 CTTW.