Understanding Diamond Certificates

    Published: 06-16-2009
    Views: 11,726
    Diamond expert Ronnie Mervis discusses how to read a diamond certificate when buying diamond jewelry.

    Ronnie Mervis: From Mervis Diamond Importers, this is Ronnie Mervis, and I would like to talk to you about, how you should read a diamond certificate. We have discussed diamond certificates, in the previous segment. I mentioned AGS and GIA, an EGL and I'm not going to go into all of that again. If you wold like to know, more about that please, look at the previous element that we did.

    But I would like to talk to you about, how to read the certificate, because it's full of technical job and unless you understand what you're reading, you may not know what you're reading at all. First thing to understand, is that any diamond can get a certificate. A good diamond can have a certificate and a bad diamond can get a certificate, because it's simple sort of a report which is issued by a reputable lab saying, this is what it is.

    The labs will read the certificate -- the stones and they will give you a report classifying all the quantifiable things, like the weight, like the measurements, like the color and the clarity. It will also, give you some very specific numerical values for ratios and proportions and unless you know what they all mean, I guess they don't mean very much, because you can't put them into perspective.

    But the one short coming of this certificate is that it doesn't tell you, in very simple English, is this a beautiful diamond, or is it not? Remember, that every diamond that's sent to a lab, will get a certificate. It's like every kid that goes to school will get a report card. The bright kid will get the report card, and then not so bright kids will get the report card too.

    So the very presence of a certificate doesn't tell you that that it's a great diamond and the effect that a diamond doesn't have a certificate may be enough to tell you that it is not a great diamond. It could not have been submitted for certificate for many reasons, one of which could be the that labs were backed up and it took a long time to issue certificates and whoever owned the diamond at that point, in time just didn't want to wait six weeks or eight weeks or whatever it was for a certificate.

    So the certificate is helpful, it will tell you a lot of things, but it doesn't tell you everything and you should be aware that a diamond with a certificate might lead you to believe that it is an excellent diamond, could in fact, be not that great, because it doesn't tell you it's natural beauty and another diamond which has a certificate which if you're reading only numbers, you may think are not that great, actually could make a fantastic diamond.

    So use it as a guide, but don't use it as an end to itself. The certificate doesn't tell the whole story. The only way, you are really going to know, is by seeing the diamond and by looking at against many other diamonds and getting a true feel a taste of what you're looking at, to see how much it pleases you. Now please don't get me wrong. I'm not putting a diamond certificates, they are invaluable; we use them all the time. I am just telling you that it has to be used correctly in conjunction with the actual diamond.

    In another segment, I'm going to talk to you about online purchases. How do you purchase a diamond online, when you can't see the diamond? But that's another discussion and we're not going to deal with it now. I look forward to finding it later. Thank you, very much.