Champagne colored diamonds range from light brown to dark brown shades and are commonly used in inexpensive jewelry sold by retailers like Walmart and Sears. While fancy brown diamonds can be beautiful, many promotional jewelry pieces use less attractive off-brown colors. The champagne diamond is the most prevalent fancy color diamond, appearing in shades of brown rated on the "C" scale since standard grading focuses on yellow tints rather than brown. However, despite marketing from mines like Argyle in Australia, demand and prices for brown diamonds overall remain relatively low.