Gemstone: Genuine Swiss Blue Topaz, 1 piece, Pear Shape, Checkerboard Cut, 10x7mm. Gemstone has a vibrant rich color and eye clean clarity. Pendant is in Sterling Silver with. 925 stamp and measures 5/8 x 1/4 inches and weighs 1.80 grams. Pendant features top quality workmanship and a beautiful finish. Includes Free 18 inch Sterling Silver Box Style Chain, Free Ribbon Gift Box and.