Champagne or Brown diamonds, also known as Chocolate diamonds or Cognac diamonds, are a type of diamond with a brown or brownish hue.
The structural formation of the diamond crystal lattice causes the brown color of brown diamonds. The specific cause of the brown color can vary, but it is often attributed to the presence of nitrogen or hydrogen within the crystal structure. These impurities absorb certain wavelengths of light, resulting in the brown coloration.
Within the category of Champagne diamonds, there is a wide range of colors and intensities, from light Champagne and Cognac shades to deep, dark chocolate brown. The value of a Champaign diamond is influenced by factors such as its color intensity, clarity, carat weight, and cut quality.