Diamonds are nature's hardest things,rase and expensive .Man

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  • Diamonds are nature's hardest things,rare and expensive .Man-made diamonds provide a __CHEAPER_(cheap) and more readily available solution.Recent breakthroughts have brought methods to mass produce synthetic gems for both the jewelry industry and for technology,but _THE__history of man-made diamonds is over a hundred years old.

    Man-made diamonds come in two types.They are synthetics,_WHICH__have the same chemical composition and structures_FOR __diamonds,and simulants,which are of different materials,but appear diamond-lik and have some of diamond's features.

    The first man-made diamnds in history were of the simulant type_MADE__(make) by Dr.henri Moissan in 1893.Later,many scientists made new__DISCOVERIES_(discover)of man-madediamonds.Recent breakthroughts in synthetic diamond"growth"__HAVE ENABLED_(enable) some smaller companies to enter the market for man-made diamonds.

    _IT__is intereting to note that throughOUt the history of man-maed diamonds,the purpose to produce them was for use in technology.For many,the intention was__TO AID _(aid) science.The resulting gems are_SIMPLY__(simple) a happy and money-making accident