2ct Blue Topaz and Lab Diamond Ring 9K White Gold - AsteriaA spectacular statement ring, this piece scintillates with a staggering cushion cut sky blue topaz, surrounded by sparkling, sustainable lab grown diamonds in white gold. With a cushion cut centre gemstone that's claw set for maximum sparkle, it is sure to capture her heart. *The sustainable luxury choice. Lab grown diamonds are chemically and optically identical in brilliance and beauty to a natural mined diamond.