Illuminate your neckline with the refined beauty of this lab-grown diamond curved bar necklace. 10k white gold certified lab-grown diamonds graduate in size toward the center along this curved bar design each lab-grown diamond is artfully set to enhance size and sparkle i color/si2 clarity with certification card 1 ct. T. W. Of lab-grown diamonds 18. 0-inch rope chain necklace; spring-ring clasp