IGI East-West 1.09 Ct Lab-Grown Princess Cut Diamond 14KT Gold Engagement Ring. This ring is a size 7. Featuring one beautiful princess cut lab-grown (CVD) diamond with a carat weight of 1.09 ct (measurements: 5.75mm x 5.75mm x 3.97mm). This lab-grown diamond has a clarity of VVS1, a color of E, excellent polish and excellent symmetry. It has been authenticated and graded by IGI.