Natural Unheated Ruby and Diamond Ring, Certified by GRS Laboratory, features 3.00 Carat Cushion Shape, No Heat Ruby, intense red color, surrounded by 12 Pear Shaped diamonds totaling 4.20 Carats. Metal: Platinum Center Stone: 3.00 Carat Ruby, NO HEAT, White Diamonds: 4.20 Carats Ring size: 6 1/2 (can be sized Additional information: Accompanied by GRS Certificate