Bright London blue topaz frames your face with luminosity, offering a natural glow. We love this Konstantino necklace for formal occasions#151;just be sure to wear hair upswept so admirers can get a closer look at its striking intricacies. London blue topaz facets. Sterling silver settings with intricate carvings. Necklace, 17"L. Drops, 2 1/2"L each. Spring ring clasp. Handcrafted in Athens, Greece.