Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem.
Topaz actually has an exceptionally wide color range that, besides brown, includes various tones and saturations of blue, green, yellow, orange, red, pink, and purple. Colorless topaz is plentiful, and is often treated to give it a blue color. Topaz is also pleochroic, meaning that the gem can show different colors in different crystal directions.
The royal court in Portugal celebrates the discovery of Imperial topaz in 1768.
A transparent topaz crystal discovered in Minas Gerais, Brazil weighs an astounding 596 pounds.
Irradiating colorless topaz with electrons at energy of 10 million electron volts creates a sky blue color.
There are a number of processes used to alter the color, apparent clarity, or improve the durability of gems.
Precious topaz is a birthstone for November and blue topaz is a birthstone for December. Blue topaz is the gem of the 4th anniversary and Imperial topaz is the gem of the 23rd anniversary.