Blue diamonds are real, natural diamonds that form beneath the earth’s surface over billions of years. These diamonds are not color-treated or enhanced to get their blue color—it is natural. The mesmerizing color of the blue diamond comes from traces of boron in the diamond’s carbon composition.
Blue diamonds are found only in a few mines in the world: the Cullinan mine in South Africa, the Argyle Mine in Australia, and the Goloconda mine in India. The carat weight and intensity of blue color dictate how much a blue diamond is worth. Because of blue diamonds’ rarity, they’re usually more expensive than white diamonds and other fancy color diamonds.
