A cherry tomato is a rounded, small fruited tomato thought to be an intermediate genetic admixture between wild currant-type tomatoes and domesticated garden tomatoes. Cherry tomatoes range in size from a thumbtip up to the size of a golf ball, and can range from being spherical to slightly oblong in shape. Although usually red, yellow, green and black varieties also exist. The more oblong ones often share characteristics with plum tomatoes, and are known as grape tomatoes.