RINGJEWEL 16.35 ct 17.35 Mm Black Color Real Moissanite Diamond Loose Round Cut Use 4 Pendant/ring Dimension:17.35 mm ( Diameter ) Order ships within 1 day from India with INDIA POST Registered Airmail ( 2-3 weeks Delivery). Natural Diamond Hardness is 10 & Moissanite Hardness is 9.25 Diamond & Moissanite maintains its clarity and sparkle throughout a lifetime. A Moissanite that is an actual lab created simulated diamond and this is one of the finest diamond alternative products with 10 Times Lower Price on the market to date.