London Blue Topaz
lon·don blue to·paz | ˈlən-dən blü tō-ˌpaz
noun
A popular variation of topaz with a vivid, dark blue-green color
London blue topaz is a coveted variety of Topaz that is deep blue in color. The aluminum silicate gemstone consists of up to 20% fluorine, giving it its deep blue color. It has been sought after for centuries because it was once believed to hold special healing powers, and today is still associated with tranquility and peace for the wearer of the stone. These stones are often more intense in color than other topaz variants and have a brilliant luster that makes them an ideal selection for the December birthstone. The color of the London blue topaz is its defining characteristic and must match specific criteria, and it has a hardness of 8, but it can vary more significantly in clarity and other elements.