fancy color diamond manufacturing

[nehalkind]

where fancy color diamonds are best manufacutured ? i heard that it has air conditioning small pipes which cooling a diamond so fancy color diamond doesnot get affected due to hit. can anyone share me video or information

 

[eh613c]

Are you referring to simulated colored diamonds?

 

[pinkjewel]

In very old rocks...

If you are asking about lab created diamonds-there is a separate sub forum.

 

[nehalkind]

I am talking Real diamonds

 

[kenny]

I think I read somewhere that the color in natural green diamonds is particularly sensitive to heat so the cutters must take extra care to not work too fast.
Apparently enormous heat builds up from the friction of diamond polishing.

Sorry I can't offer more.
Hopefully our cutter DiaGem will chime in, though I don't know whether he cuts FCDs.