Certified Diamonds

Certified Diamonds - GIA, EGL, AGS, Which Diamond Grading Lab is Best?
Executive summary about Certified Diamonds By Andy Moquin

There are lots of opinions in the jewelry industry about which grading lab is best when choosing a diamond. How are diamonds certified?
The "Big Three" grading laboratories as I like to call them have similar processes for certifying diamonds. You must consider the indisputable fact that there is no exact science behind diamond grading. Then, you throw away the certification and send the diamond back for a second grading as if it were never graded before. Read the grading report from whatever lab certified the diamond and examine both the diamond and the certification. GIA, EGL, AGS, GIA - Gemological Institute of America EGL - European Gemological Laboratory AGS - American Gem Society
Recently, GIA seems to have the best reputation for grading diamonds accurately. I challenge this because I've seen and compared many diamonds from all three labs and witnessed inaccuracies in GIA grades as often as EGL and AGS. So if that is the case, then why would pay more for a GIA certified diamond that has the same grade as an EGL or AGS diamond? In the end many jewelers price an EGL certified diamond at less than GIA or AGS stones. For a consumer though, purchasing an EGL certified diamond is an excellent opportunity to buy a well graded diamond for much less than you have to. You can learn more about diamond certifications at certified diamonds.

If a jeweler suspects that a diamond is cut very well then he may send the diamond to AGS for certification. If you are looking for a diamond with a very high cut grade you should consider looking at diamonds that have been certified by AGS.

After comparing them, you decide that the diamonds look similar but the EGL diamond is 15% less in price. Just because some jewelers think that GIA is a better grading lab doesn't make the diamond certified by GIA better. The grading labs don't make the diamonds, they simply grade them, a diamond isn't made better by its certification. If one diamond looks better than another it probably is, regardless of the grade or what lab assigned it. Again, it doesn't matter who graded the diamond or what the grade is. Diamond certification is certainly important to have and I don't think you should purchase a quality diamond without one. Not a grading lab!

Why You Should Always Get A Diamond Certificate Before Buying A Diamond
Executive summary about Certified Diamonds By Gregg Hall

Diamond grading reports are certificates issued from the Gemological Institute of America which is an independent third party laboratory specializing in grading these precious stones. The certification from the GIA gives you a written verification of the weight, cut, clarity, and carat of the stone you are seeking. Think about it, would you buy an expensive item from a stranger without some serious third party documentation?

If a dealer that you are speaking to you about a diamond is unwilling to produce a certificate or they tell you that it will be more expensive to purchase a certified diamond then don't do business with them, ever. This is a solid indication that they are either peddlers of inferior quality merchandise or just flat out crooks.

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