The semi-mount holds a 1 ct center stone and has 18 round brilliant cut diamonds that are G SI1. It has an open scroll work design, center diamond available at an additional charge. This design is available in 3 different center stone sizes 1/2 ct, 3/4 ct, 1 ct. Available to ship in 7-10 days. Please call for more information 1-800-348-4499.