<p>What Is Diamond Certification?</p>
  • Written by Aiman Ibrash
  • September 16th, 2017
  • About General

What Is Diamond Certification?

How do you know which diamond to buy? Which ones are authentic and which not? Along with each diamond you’re considering, you should obtain and review its laboratory certification. This laboratory report or qualification will be granted by a grading entity and represents various components of the gemstone, such as Color, Quality, length. Trained professionals examine, scrutinize and gauge the diamond jewelry using professional tools, like a loupe or microscope.

Each entity grades and describes gemstones differently and sometimes the difference is significant. Several laboratories exist and it’s really important to learn which are dependable and reliable, and those are not.

Because precious stone certificates aren’t created equal, the purchase price and value of diamond jewelry are not similar across different qualifications. Make sure that you purchase diamonds with a qualification from an extremely reputable grading entity and that you review the precious stone thoroughly before purchase.

What To Watch Out For In A Diamond Certification

Consistency
With regards to comparing laboratory grading entities, it’s more important to look for regularity rather than strictness of grading.

For instance, the GIA won’t grade a precious stone the same manner the IGI rates a gem. The stability of the color and Clearness grades and occasionally the Trim grades is only as effective as the certifying lab’s reputation. But if one laboratory regularly provides single Clarity class greater than another laboratory, that laboratory is in no way less “authentic."

To highlight the value of this concern, take Color levels for example. We recommend keeping an H color or better when placing a precious stone in an environment such as this one. It may seem you have found the ideal gemstone with an H color diamond with an IGI license. But when you have it home, you understand the precious stone has a yellowish tint. It is because the gemstone is very much like an I color by GIA certification and the IGI just offers a relatively weak certificate.

Instead of simply comparing marks between accreditations, look for persistence within the entity’s grading decisions.

Different documentation labs give different results. Every laboratory has its quirks. Some are looser in grading Color, while some are inconsistent with Quality. Some labs will usually update specific Colors and variations, while others prefer particular agreements of inclusions.

Smart diamonds companies utilize this knowledge, gained from mailing thousands of gemstones to different labs each month to increase their results. Knowing which labs are dependable and constant can help you avoid investing in a gemstone worth significantly less than what the license is saying to be true.

Gemstone grading is subjective

All precious stone grading is subjective and unlike popular belief there is not really a central company that mathematically identifies just what a “G” Color is or what an “SI1” Quality looks like. If one laboratory regularly says that one color quality is a “G” while another laboratory will regularly be calling that same color “H", it’s correctly suitable and reasonable as long as they do so consistently.

It is important to note that even though an entity is regular in its grading, it generally does not indicate the entity is trustworthy and reliable. Buying a precious stone with an unreliable certificate at an unrealistic price is not right even if the entity constantly grades diamond jewelry this way because you aren’t getting the worthiness for the purchase price you’re paying.

GIA Certified Loose Diamonds

The GIA (Gemological Institute of America) is the most well respected and renowned precious stone grading entity. They are really incredibly constant and give the greatest satisfaction when purchasing any diamonds. GIA does not have any financial stake in the sales of the diamonds and evaluates gemstones on a number of attributes and elements, including:

  • Girdle thickness
  • Cut level (Excellent, Very Good, Good, While)
  • Color level (which range from D to J)
  • Clarity quality (IF, VVS1, VVS2, VS1, VS2, SI1, SI2)
  • Measurements (in millimeters)
  • Slicing style and precious stone shape
  • Carat weight
  • Table %
  • Depth %
  • Culet size
  • Symmetry
  • Proportion diagram
  • Polish grade
  • Diamond plot demonstrating all blemishes and inclusions
  • Fluorescence grade
  • Laser beam inscription (if appropriate)
  • Security features


  • All in all, GIA certified loose diamonds have a reputation for great Color and Clearness, the most subjective scales, and most rigorous evaluation. Due to GIA’s high reputation, proven reliability and background, we recommend only buying GIA certified loose diamonds.

    Why buy GIA Certified Loose Diamonds?

    Each precious stone is licensed and priced in line with the four “C’s” (karat, color, quality, and trim). But perhaps you have never pondered who levels the precious stone a sales rep shows you? Quite simply, how will you know that a diamond said to be a G color and VS1 clearness is really a G color, VS1 quality diamond?

    Let`s say that you get a precious stone graded as 0.76 karats, G color and VS1 quality from us at 5 Antwerp. To make sure that our grading of the diamonds is current, you choose to take it to ten different precious stone graders. You will likely discover that the ten appraisers offer you at least six different evaluations, which might differ from the statement at Antwerp. Does this imply that Antwerp was wrong, and sold the diamonds to you in an unethical or deceptive manner? Maybe five our evaluation was valid and the other jewelers were providing you with incorrect information. How will you compare precious stone prices objectively if one precious stone can receive so many gradings?

    Now you almost certainly understand what an average shopper must go through in search of that special stone. Isn’t there an improved and simpler way to do this? YES, IT EXISTS! Look for a gemstone that is certified, not by simply anyone, but by the GIA (Gemological Institute of America). All diamonds experts and jewelers know what a “GIA certificate” is. The GIA’s grading is undeniably regarded throughout the diamond industry as the utmost accurate and impartial judgment as it pertains to grading gemstones.

    Assessing prices of GIA certified loose diamonds is currently very easy. You do not even have to go to different stores to help make the comparisons. Simply call a jeweler and ask for the cost of a GIA authorized 0.76 karat, G color, and VS1 clearness diamonds with a good chop. If normal prices are competitive, they’ll be able to estimate you a precise price. Then, all you need to do is choose the diamonds from the jeweler with the best price. Theoretically, you’d be in a position to reach a conclusion without even stepping out of your home. Needless to say, factors apart from price also need to be considered. Stay at home and buy all your favorite stones conveniently!



    Aimanibbi is a fashion enthusiast drawn by her love for stones and jewelry. She also loves to read and has a passion for diamonds which she explores in her free time. You can contact Aiman Ibrash at [email protected]