Gemstones: Lab Created Blue Sapphire, 4 pieces, Heart Shape, Checkerboard Cut, 5.00 mm. Gemstones have a vibrant rich color and eye clean clarity. Pendant is in Sterling Silver with. 925 stamp and measures 3/4 x 1/2 inches and weighs 1.70 grams. Pendant features top quality workmanship and a beautiful finish. Includes Free 18 inch Sterling Silver Box Style Chain, Free Ribbon Gift Box and.