 Nyorai mberi kwechikamu chino - Kumakwikwi eOlympic ekuBritain a2012 muBirmingham, Diamond akamhanya nguva yemasekonzi 53.36 kuti apedze ari wechina mumakwikwi ekupedzisira emamita 400. Mhedzisiro iyi yakamutungamira kuti asarudzwe semubatsiri wevakadzi 4 x 400 metres relaychikwata cheGreat Britain paMitambo yeOlympic yeZhizha ya2012 muLondon. Kusarudzwa kwake kwakauya pasinei nokuti Diamond akanga ambomhanya nhangemutange yacho kashanu chete mumakwikwi okunze. 