Wholesale Marquise Diamonds in Dallas, Texas. Shira Diamonds Dallas specializes in Marquise Cut Diamonds. We have 100s of marquise cut diamonds for sale. This marquise cut diamond is H in color and VS2 in Clarity. The size of this marquise cut diamond is 0.99cts. If you would like to view this marquise cut diamond please give us a call at 214-336-8629.