Citrine is a variety of quartz whose color ranges from a pale yellow to brown. The name comes from the Latin citrina for yellow. Citrine is a variety of quartz ranging in colors of yellow, yellow-brown, orange, dark ora...nge-brown, reddish-brown. Citrine crystals can form together with amethyst or smoky quartz to form a bi-colored quartz called ametrine.
Almost all citrine that is available on the market today is heat-treated amethyst. Natural citrine is pale yellow to pale orange, much lighter than the heat-treated material which is dark orange-brown to reddish-brown. All of the heat-treated material has a red tint, while natural citrine does not.
After Queen Victoria married Prince Albert, they built Balmoral Castle in the Scottish Highlands. The queen gave many parties where she required her guests to dress in full Highlands attire. The Queen was enamoured of gemstones found within her kingdom, citrine in particular. So citrines set in traditional Highlands shoulder brooches and kilt pins became popular.