This is a lovely piece of vintage West German glass that is perfect with pearls. The surface is pebbly with a shimmery iridescence that, like the snow, reflects a minuscule amount of blue and pink. I have this clasp on my pearls and it makes a seamless presentation. The centerpiece is 14 mm and is set in a hand made sterling silver box clasp. The clasp is 25 mm from ring to ring.