Dorsey - HOUGHTON, LAB RED SAPPHIRE RING, SILVERThe Houghton Ring features a 5. 80 carat oval shaped lab grown red sapphire surrounded by a halo of pear and round white sapphires or diamonds flanked by baguette side stones, totaling 3. 50 carats. Custom styles can only be returned for store credit. The Fine Print: Metal: Sterling silver or 14k white gold Center stone: Lab grown red sapphire Halo and side stones: Lab grown white sapphire or lab grown diamond Stone Shape: Oval center, pear and round