Platinum Engagement Ring with Center Prong-Set Emerald Cut Diamond Ring with Two Trapezoid Side Diamonds (0.57 tcw). Shown here with 8mm x 6mm CZ center stone, weighing approximately 1.75cts in a size shy 6. High polish finish. Price is for mount only in sizes 4.5 – 6.5. Center diamond and other custom stone and ring sizes available upon request. Platinum Emerald Cut Engagement Ring Mount with Two Trapezoid Diamonds