London Blue Topaz Pendant Top Brand New Blue topaz comes in various colors. There's sky blue topaz, which resembles a clear sky, and Swiss blue topaz, which has a deeper color... Among them, only those with a deep, shimmering blue-green color reminiscent of the London sky are called "London Blue Topaz." Due to its complex color, London Blue Topaz is said to suit any skin tone and eye color. Birthstone Natural Stone Power Stone Jewelry