death_date death_place birth_place name birth_date known_for article_title birth_name
25 july 2008 provo , utah ogden , utah howard tracy hall 20 october 1919 inventing the synthetic diamond tracy hall
 tracy hall
tracy hall

howard tracy hall -lrb- october 20 , 1919 -- july 25 , 2008 -rrb- was an american physical chemist , and the first person who grew a synthetic diamond according to a reproducible , verifiable and witnessed process , using a press of his own design .
