it was created in 1857 by the french chemist marc garden. this scientific breakthrough already in the 20th century the world saw the first artificial diamond. in 1939 , soviet scientist ovsey leypunsky was in the process of a long laboratory. the work deduced the main conditions for creating artificial diamonds: a pressure of at least 60,000 atmospheres and a temperature of 1227° celsius. and one more important point: the process must take place in molten metal. two decades later , in the ussr, usa and sweden, scientists identified two main technologies that are still used today. synthesize another artificial stone, emerald was succeeded in... for the first time in 1935 by the german scientist espig, although research on this topic was introduced in the second half of the 19th century. the birthplace of the first artificially grown pearls is china, and the chinese kept the secret of its creation for a very long time, but in 1890 the technology became known to the japanese, it is called cultivation and takes a lot of time. the grains of mothe

garden and she said, "as you can imagine, it was a really beautiful surprise." you're all caught up now. see you later. hello and welcome to sportsday with me, marc edwards.ty's alleged breaches of financial rules. saudi arabia avoid an upset as they see off 0man in the asian cup. rugby bombshell as rees zammit quits the sport to try to fulfill his nfl dreams. welcome to sportsday. the premier league chief executive, richard masters, says a date has been set for the hearing into manchester city's alleged breaches of financial rules. premier league champions city were charged with 115 breaches in february 2023 but are yet to face a hearing while everton and nottingham forest were charged for breaching league profit and sustainability rules on tuesday. here is the bbc sports editor dan roan. you understand why fans of those two clubs perhaps are asking whether they're being treated somewhat differently to manchester city for example. masters was asked about this today. he defended the process in effect but he also made clear that the situations are very different but he could understand the frustrations of fans. if any club whether the current champions or