by FionaH » Dec 26, 2001 Hi experts! I am still searching for the perfect stone. I decidedthat I didn't want a clarity enhanced stone (not permanent enough) or a lazer drilled stone (weakens the stone and don't like the idea of holes in the stone). Now I have come across a different treatment that supoosedly does not have any of these drawbacks. Have you heard of a process called "cooking" where a lazer is used to heat the diamond to a very high heat, which turns a black carbon spot colourless? I have found an EGL Diamond where this has been done. The certificate says: ...."internal lazer treatment not shown...."under the comments section.It doesn't say the stone is lazer drilled or clarity enhanced. The vendor has explained the process that it has been through to me. Because of the treatment the stone is a good price. The clarity is now an eye clean SI2, and the stone looks very pretty. How safe is this treatment? How permanent is it? Is it a recognised treatment? Will it be difficult to re-sell such a stone if I ever needed to? Why does the EGL certificate not detail the lazer treatment? Help please!