Diamond is Forever, the engagement ring

Aterrible and unknown story, halfway between Mad Men and Dallas, is buried in this 1947 slogan from the N.W. Ayer advertising agency. 

Cecil Rhodes, a perfect hybrid of Trump and JR, a friendly imperialist fanatic , i might say, , got the  » bright idea « , after graduating from Oxford in 1880, to save the world by evangelising it the English way