American graffiti artist, ABOVE, was recently in Johannesburg. It is reported that he “convinced the traders at Johannesburg’s Jewel City - the southern hemisphere's largest exporter of diamonds…to let him paint a wall with the slogan ‘Diamonds Are A Woman’s Best Friend’.” But ABOVE wasn’t entirely honest with the owners of Jewel City and made an addition to the mural in protest against blood diamonds, which it is claimed are traded at this...