Heart Shaped White Sapphire simulated ring .925 Silver Ring Lab grown diamonds are sometimes referred to as simulated. man-made. synthetic cultured or artisan, each phrase phrase denotes a certified diamond that has been grown in a lab. my other listing: I offer an extensive array of beautiful earrings, necklaces, pendants, and rings for you as well as to make an ideal gift for all occasions. I have beautiful engagement rings and wedding bands perfect for the special moment. With a vast collection of white, black, blue, champagne and yellow stones & simulated diamonds, you can be assured to find what you are looking for.