Gia diamond grading reports are not issued for laboratory grown diamonds diamond simulants mounted diamonds or those that have undergone unstable treatments such as fracture filling or coating.
Gia laser drilled diamonds.
The easiest way to find out if a diamond has been laser drilled is to look at its certificate.
Diamonds have been laser drilled since at least the mid 1980s.
If it is determined that a diamond has had these treatments the gia will make sure that future buyers and jewelers are fully aware of it by placing it prominently on the final report.
According to the rapaport diamond report september 4 1987 the filling compound devel oped by yehuda is introduced into the diamonds at relatively high pressures in the range of 50 atmos.
It doesn t leave any foreign material inside the diamond after the process is performed.
Gia will grade laser drilled diamonds marking the laser drill holes on the inclusion plot.
The tunnel in a laser drilled diamond is so small just 20 25 microns in diameter that it doesn t affect the weight of the diamond.
This will provide an unbiased avenue for you to be fully educated and buy the diamond that is right for you.
Certified non enhanced gia certified natural hpht laser drilled and clarity enhanced.
Most often it is used to whiten a black carbon crystal which is prominently visible in the diamond to the naked eye.
Profile view of laser drilled diamond showing a tunnel reaching the inclusion gia.
They are 100 natural diamonds that have had their internal inclusions removed with a clean laser cutting process.
As a further precaution gia.
Examined samples of laser drilled diamonds that have been treated in an attempt to fill fractures reached by the laser.
How to tell if a diamond has been laser drilled.
We suggest consulting with a diamond supplier offering all types of diamonds.
The change in appearance of the laser drilled diamond is permanent.
Gia will issue reports for treated diamonds that have been laser drilled or hpht processed disclosing the presence of treatments on the report.
Laser drill diamonds laser drilled diamonds are an exciting and relatively new type of diamond offering for consumers who want a beautiful sparkling diamond at an affordable price.
Since the development of the laser drilling technique and until more recently laser drilling was an accepted part of the diamond manufacturing process.
Gemological institute of america will list the drill holes in the stone if there are any.
Gia does not issue grading reports for any treated diamond having undergone a process that s considered nonpermanent or unstable such as coating or fracture filling.
Generally speaking laser drilling will not weaken the structural integrity of the diamond to a serious extent.
A diamond report issued by the g i a.
The gia will complete reports for any loose diamond that has undergone hpht treatment or laser drilling.