At the heart this stunning ring is a flawless custom cut Diamondeau - flawless simulated diamond gem, in an elongated Hexagon cut. Our designer felt that such a geometric stone was perfect for an Art Deco design he had been working on. After some special modifications and the addition of a further 76 Diamondeau - flawless simulated diamond our Catalina Ring was born. We have of course used only the finest 925 solid Sterling Silver for such an important piece. Magnificent presentation case.