What the fuck do you think its means you fucking absolute moron. You dumb nigger monkey, you absolute coon,if you would've seen it being used in context you know what it means .What the fuck do you think people mean when they compare good images that are unique in nature to rare minerals??? maybe its meant to symbolize the cultural aspect of the white boy clitty being destroyed by the big black bull and being absolutely COVERED IN THICK BLACK SEED ,while the inferior (but still cute) white boi slowly loves and pleasure his black master,or maybe people say its a "gem" because its a rare and unqiuely good image....