Topaz
Topaz can have different colors. It may be colorless, yellow, golden yellow, pink, bluish, red, violet, orange, greenish to brown. Its name topaz was derived from Topasos island in the Red Sea.
Colorless topazes are often used instead of diamonds, they also have a similar structure, but the ability to reflect light is not for topaz as noticeable as in case of diamond. Learn more about topaz.