Blue topaz is a popular and versatile gemstone that comes in a range of blue shades, from pale sky blue to deep London blue. It is a naturally occurring mineral, but most blue topaz on the market today is created through a process of heat treatment or irradiation. Blue topaz is valued for its beauty and affordability, as well as its association with calmness and relaxation. It is said to soothe the mind and promote mental clarity, as well as enhance communication and self-expression. Blue topaz is found in many locations around the world, including Brazil, Sri Lanka, and Nigeria. It is often used in jewelry, especially as a birthstone for those born in December.