Extra Large Rectangular Cushion Checkerboard Cut Swiss Blue Topaz Ring Size 7 LAGOS Swiss Blue Topaz 18K Yellow Gold Signature Caviar Beaded Sterling Silver Ring - Hallmarked: LAGOS, 925, 750/18-Karat Gold - 100% Authentic Guaranteed! A LAGOS icon. Signature cushion cut swiss blue topaz gemstone ring with a prong setting in sterling silver and 18K gold Caviar beading. -- Stone(s): (1) Natural Genuine Blue Topaz - Rectangular Cushion Checkerboard Cut - Dual Prong Set - Transparent Swiss Blue Color - 20 x 15.15mm (approx.) -- Ring Width: 20.40mm (0.8") (top of the ring at the solitaire - north to south), 15.15mm (0.59") (east to west), 4.30mm (bottom of the shank) -- Ring Height: 11.60mm rise off the finger Please feel free to ask questions!