Topaz (along with Citrine) is November's birthstone, as well as being a 16th wedding anniversary gemstone. Topaz is more commonly found colourless, but trace impurities can make it appear a pale blue or golden colour – Topaz was often confused for Citrine, Peridot or even Diamond before the development of modern mineralogy! Naturally occurring blue Topaz is extremely rare, and a heat treatment is used to obtain the highly prized blue shades, including the famous London Blue & Swiss Blue.  Historically, Topaz was reputed to give long life, attract wealth and improve intelligence. Modern day crystal healers credit the beautiful Topaz as a rejuvenating and healing stone, aiding in meditation and increasing creativity and spiritual potential.