Laboratory created gems

[Smoggie]

On shopping channel jewellery programmes they sometimes refer to laboratory created gems.  Anyone know how they do this please?

[Gef]

A google search for diamonds and then search within results for man made - lots of info.

Up the Boro!

[jake-the-peg]

Diamonds are difficult but the results are getting better - so good in fact that de Beers are getting worried - ( what a shame I certainly wouldn't cry over seeing them up a financial gum tree)

Saphires, Emeralds, Rubies and others are very easy, in fact the first lasers were made using man made ruby rods about 8 inches long

[Scylax]

Diamonds eg. were first made by the General Electric Co. in1955.  They are made by mixing graphite with either cobalt or nickel and subjecting the whole to pressures of 60,000 atmospheres,at a temperature of 1327 degrees C.  Mostly these diamonds are brownish, or yellow, fit only for industrial use.

 

'Diamonds are forever ?' Just a myth, but don't hold your breath.