Ross-Simons is the authority on fashionable must-haves. An RS exclusive. Treat yourself to a unique blend of lab-grown diamonds and mined gemstones at an incredible value. Prepare for a big chill when you don our glamorous ring, featuring a steely 0.50 carat emerald-cut London blue topaz that beams opposite a fiery.30 carat pear-shaped lab-grown diamond. Crafted in polished sterling silver with petite.43 ct. t.w. lab-grown diamonds twinkling along the bypass-style band. Lab-grown diamonds are identical to mined diamonds according to their optical, physical and chemical properties. 5/8" wide. London blue topaz and lab-grown diamond bypass ring. Each Ross-Simons item arrives in a fine jewelry presentation box. Shop Ross-Simons jewelry risk-free as all items include a 30-day, 100% money-back guarantee.Stone InformationGem Type 1 - DiamondStone Cut 1 - Good-CutStone Color 1 - G-HStone Clarity 1 - SI1Stone Shape 1 - Round-ShapeStone Creation Method 1 - SyntheticStone Treatment Method 1 - No