Shop this stunning piece of Round Black Diamond Engagement Rings that is a symbol of power, charisma, confidence, and passion. Round cut diamonds are evergreen in the shape of the diamonds and they will never go out of the style. Thus, it is the perfect shape for the engagement ring so, if you are planning to propose to her then I would suggest you go with this fabulous Round Black Diamond Ring. If you want go for other shapes like princess, emerald or heart etc. then check out black diamond engagement ring in all shapes.