0.45 Ct Marquise Diamond Engagement Ring with Round Halo Side Stones – IGI Certified0. 45 Ct Marquise Cut Lab Grown Diamond Ring with 0. 20 Ct round halo stones. IGI Certified, E F VVS VS clarity. Free Worldwide Shipping. Product Description 0. 45 Ct Marquise Cut Diamond Engagement Ring with Round Halo Side Stones IGI Certified Elegant, radiant, and timeless. This ring features a 0. 45 Carat IGI certified marquise cut lab grown diamond of E F color and VVS VS clarity as the centerpiece. Surrounding it is a halo of round cut lab grown