3.4 Carat London Blue White Topaz Sterling Silver Love Knot Earrings Necklace Gift. Brilliant eye catching sparkle. Stone's uniqueness is it changes hues with the light from deep ocean blues to light desert blues. Perfect for any occasion. Two round 6 mm genuine London Blue Topaz & 48 White Topaz gems for 2.33 Carat total. Pendant is 1.07 Carat total weight. Both set in finished Sterling Silver, pendants suspends from an 18" oval link chain. Earrings secure with friction back posts. In a lovely blue embossed box.