Citrine is the transparent, pale yellow to brownish orange variety of quartz.

Citrine is a transparent variety of quartz that ranges in colour from pale yellow to brownish orange. In the past, its tawny hue often led to confusion with topaz. Today, Citrine is popular for its vibrant colour, durability, and affordability, making it the leading choice among yellow-to-orange gemstones. It serves as an appealing alternative to both topaz and yellow sapphire, with the most prized Citrine displaying a deep yellow to reddish orange without any brownish undertones.

Due to the rarity of natural Citrine, most gemstones on the market are heat-treated amethyst, which transforms from a pale violet to a vibrant yellow. The original colour of the amethyst can influence the intensity of the resulting Citrine's yellow hue.