Show I IFor Industry Uses Diamonds For Utility Not Glamour Newly found acres of diamonds being worked in East and South Af Af- Africa Africa Africa rica since early 1946 hold a threat and a promise Their mild threat is to the stability stability ity of prices of the hard and Itis- Itis lus Ius lustrous trous mineral in which people of the world have an estimated 15 bil bil- billion billion bil- bil billion lion dollar investment Their prom prom- promise promise promise ise is for relief of the war-born war critical shortage of diamonds for in industrial in- in industrial industrial use About four fifths f by weight of the record-breaking record dia- dia diamond dia J diamond mond production since 1939 has been sentenced to hard labor In grinding plate armor metals in drilling oil wells through rock in cutting glass and polishing fine lenses in drawing wire to filament I thinness and ana countless other uses the diamond plays a part It re remains re- re remains mains unchallenged as the hardest substance devised by n nature ture or by byman man Industry consumes diamonds lit lit- literally literally by the ton United Nations stockpiles were called on in supplying supply supply- supplying supplying ing some 50 million carats carats ll 11 short tons tons tons-of of industrial grades to the United State from rom 1939 through 1944 One manufacturer fn retired stone which had a n quarter carat st career industrial industrial career in 1930 weighing 1931 carats |