A chocolate diamond is a brown diamond, one of many types of colored diamonds. Most chocolate diamonds come from diamond mines in Australia. The natural occurring brown color is thought to be created by the earth's pressure on the diamonds deep in the earth. 
Chocolate diamonds, perhaps due to their new name, seem to be gaining in popularity however. A brilliant marketing scheme to help sell an abundance of low color diamonds was to rename them to "chocolate diamonds." People who never gave brown diamonds the time of day, now are looking at these diamonds. They want to be able to say that they own a chocolate diamond. It's different. It's a conversation starter and more than anything else, it's still a diamond! There are also different hues of fancy colored diamonds. For instance, the hue of a brown diamond is designated into the categories: Chocolate – light brown diamonds with no other discernable color Champaign – sparkling warm golden brown
Cognac – deep reddish/orange
Cinnamon – light pinkish brown
Honey – deep yellow orange
Clove diamonds – deep olive brown
Chocolate diamonds look great with gold and also colors like blue and green. These really make it stand out.
Chocolate pearl diamonds – this is a very elegant mix of dark brown and white that reminds many of the chocolate diamond’s namesake. Chocolate diamonds & turquoise – a very daring, but stunning mix with different textures to enhance the overall effect. Chocolate diamonds & white diamonds – this is a very common mix, but still very brilliant. Chocolate diamonds & other colored gems – again very common, but so much variety, any piece of jewelry is practically its own unique piece.
