What is a Karat Gold?

Karat is a measure of fineness. 24 karat is fine gold or 100% gold. One karat equals 1/24 or .0417. Thus 14 karat gold is 14/24 or .583 fine gold and the balance (10/24 or .417) alloy. The usual alloy metals are silver, copper and zinc. Nickel is used in white gold. 10K = .416 gold and .584 alloy. 18K = .750 gold and .250 alloy. Most Ansar Bahá'í jewelry is available in 18K, 14K and 10K yellow or white gold, as well as Sterling Silver.

Gold Colors
Yellow, pink and green are produced by variations in the alloy. Silver and zinc tend to give a green color, copper gives a red color and nickel produces white gold.