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Canadian Diamond Laboratory

55 Queen Street East, Toronto, ON
5 reviews
Claim this business Last updated: Over a year ago
Listed in: Promotions
About Canadian Diamond Laboratory

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)

5 reviews
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By canadian1234 on Dec 16, 2016
Great Appraisals
I bought a diamond from Blue Nile, because every review I read was good. The diamond was a 1.03 SI1 G Excellent Cut. Since I had 30 days to review my purchase, I decided to get it verified. I sent the diamond to CDL and they graded the diamond 1.03 SI2 G (one grade lower). I was extremely upset. They explained the grading was due to the slight haziness the diamond showed. They invited me to the office and showed me proper lighting how the haziness-cloudiness affected the brilliance of my stone. Luckily (i still had time), I sent the diamond back and received a refund. I was highly satisfied with their service and their due dilligence..
By Diamond876 on Oct 05, 2016
Accurate Appraisal
I submitted a ring for an appraisal (something I bought in Aruba) and they told me that my diamond could possibly be a FAKE. They did further testing with the DeBeers machine and the diamond in question turned out to be A LAB GROWN. I contacted the jeweller in Aruba (with the help of CDL certificate) and luckily got my money back. The other appraiser I had it checked out with (6 months earlier) did not detect it. If you want a good thorough appraisal, I would recommend these guys..
By Great17862 on May 06, 2015
Good Product
The Ring I bought I had came with a GS Labs sticker and a CDL labs full certificate. I had it verified by an INDEPENDENT Gemmologist and the grading was identical. I would highly recommend.
By gemguy on Nov 28, 2013
Not so accurate as you say
I have reviewed several of your cert.s and you are quick to copy from an EGL cert. BUT not verifying your own results.
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.
By eskimo1111 on Feb 05, 2010
One of the best diamond reports available
I bought a diamond from my local jeweller. It came with a Detailed Canadian Diamond Laboratory Report. I am not very exprienced with diamond Grading. I went to their website and verified that the report was authentic. That was very comforting considering i spent over 8,000.00. I would recommend this company to anyone who is thinking of buying any type of jewellery.

Comment by jennifer on Feb 08, 2010
lovely, just lovely

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The purpose of a diamond certificate is to offer you the highest possible level of security and confidence. It confirms the diamond’s authenticity and describes its essential characteristics. Grading diamonds is not an easy task. It needs to be examined by expert gemologists, under strict lighting and using specific gemological equipment. Diamond Certificates are invaluable documents that show in detail a diamond's credentials. They provide a unique fingerprint of a diamond which is a source of vital information to the trained gemologist, jeweller or consumer. A CDL certificate enables you to buy your diamond with confidence.
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