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The Canadian Diamond Laboratory was created to offer clients a scientific and accurate form of diamond grading. In a world where diamonds are still a mystery to most, CDL simplifies the diamond buying process by providing the highest quality in diamond certification.CDL authenticates and verifies all diamonds by using state of the art instruments and carefully measures each characteristic of a diamond Go to full description...
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Canadian Diamond Laboratory, Toronto Reviews (5)
I just saw a stone you graded (or copied) as SI-2 and F colour. The stone is I-1 and closer to I-2 / G-H (mounted)
You have no concern for the problems you create when you pass yourself off as experts. It causes mistrust in the industry
and puts the trusting jeweller in a problem situation with his customer. I am a former GIA instructor and you certainly didn't learn diamond grading or ethics from GIA's instructors.
E. Vaio G.G.