Shine on you crazy (man-made) diamond

Re: Your article "Diamonds a girl's (man-made) best friend" (NZ Herald, September 9).
Man-made diamonds have been around a long time, the first was produced in the 1950s. However manufacturing costs for gem-grade diamond was prohibitively expensive, until recently. Being a man-made product, their source is infinite and, as production increases, prices can only come down.
There is misconception of De Beers controlling the price of natural diamonds. For the past two or three decades, they have had serious competition with other large mining companies; Rio Tinto, BHP Biliton and Alrosa to name but a

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