This is the only inherent difference between the two, as natural diamonds often contain a very small amount of nitrogen, while synthetic diamonds do not. The US Federal Trade Commission, or FTC, classes man-made diamonds as “real” diamonds.SPECIFICATIONSMain Gem Type: 1ct lab-grown DiamondGem shaped: marquise cutDiamond Color: DDiamond Clarity：VVS/VS/SIMaterial: Real gold 10K/14K/18K (Gold 417/ 585/ 750)Color: White gold/ Yellow gold/ Rose goldRing size for women: US 4 - US 15Can be customized: Yes, free engrave♥ Will you marry me? Yes, I do, with this different ring. ♥Best gifts ring for her. Women, female, girls, fiancee, bridal, wife, girlfriend, lesbian, mom, mother, sister, grandma,grandmother, nana, or some one you loveSuit for occasion Travel engagement/ Wedding set/ Promise/ Anniversary/ Eternal/ Proposal/ Ceremony/ Celebration/ Surprise/ HoneymoonPACKAGE:1pcs Solid gold engagement diamond ring for her1pcs WSX jewelry box1pcs Jewelry wipe clothTIPS:1. Please click "Customize Now" in the upper right corner to customize your product.2. Store your jewelry separately to avoid the scratch.3. Since the effect displayed on each screen will be different, please note that there will be color difference.4. Because it is measured manually, please allow a small amount of error.(1 inch = 25.4mm)- About WSX Jewelry -WSX Jewelry is committed to providing each customer with high quality product and guaranteed service, which is renowned by its unique designs and detailed craftsmanship which makes the jewelry ideal for both formal and casual occasions. Hope our jewelry can light up your life and witness your every special moment.