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Graded and Certified Diamonds

Sell graded and certified diamonds for best diamond prices at Nevada Coin Mart in Las Vegas & Henderson NV

What is a Certified Diamond

A certified diamond is a diamond that has been issued a certification document that is given by third-party laboratories that study a diamond’s characteristics. Most of these certifications come from laboratories such as AGS, EGL, IGI, GIA, GSI, and HRD.

Price of Diamond

When selling graded and certified diamonds, it is important to know that you understand how pricing works so that you get a fair deal.

The price of diamonds is quite difficult to determine. However, the primary factor that plays in determining the price of diamonds is the Four C’s (Carat, Color, Cut, & Clarity). The diamond industry, particularly the Gemological Institute of America (GIA), set these standards to be objectively determined the price of diamonds. 

Carat – The carat a unit of measurement that pertains to the diamond’s weight. One carat is equal to 0.007055 ounces or 200 milligrams. The carat weight is determined by a point system (100 points), and if a diamond has 50 points, then it is 0.5 carats. And the higher the carat weight is, the pricier the diamonds are.

Color – Diamonds are also available in a variety of colors like pink, blue, and more. But the most common diamonds are the white ones, and the most valuable are the ones deemed colorless diamonds. This is because colorless diamonds allow more light to pass through it, hence making it “sparklier.”

White diamonds can range from colorless to a light brown or yellow and are graded D (for completely colorless) to Z for very noticeable color. In contrast, colored diamonds have a different grading scale and are deemed more valuable based on how solid the color is.

Cut – The cut of the diamond determines how light is dispersed through it, how it sparkles. 

Clarity – A diamond’s clarity pertains to its pureness—the pureness in the sense of it being free of flaws or inclusions. Inclusions are marks on the diamond. The fewer inclusions, the more valuable it is.

What’s in a Certification?

Graded and certified diamonds should include a certificate that states the grading and descriptions of the diamond’s color, clarity, carat, cut, length, and width. Diamond experts are trained professionals who use various tools in analyzing, evaluating, and measuring diamonds. 

Diamond certifications are different from each other. That’s why the value and price of diamonds vary as well with different certification bodies. That’s why when you decide to sell your certified diamonds to reputable diamond buyers, your certification must be from a reputable organization.

GIA Certification

The Gemological Institute of America or GIA is the most well-known and well-respected diamond grading body. GIA studies and evaluate diamonds in terms of different factors, including but not limited to:

  • Carat Weight
  • Diamond Shape
  • Cutting Style
  • Cut Grade
  • Symmetry
  • Polish Grade
  • Color Grade

Best Diamond Certifications

Many organizations give out diamond certifications, but the two best certifications are from the Gemological Institute of America (GIA) and the American Gem Society (AGS). They are very consistent in their methods of grading diamonds. These two laboratories are also more meticulous in their analysis and evaluation of the diamonds. However, certifications from other laboratories are reputable as well.

AGS Certification

The American Gem Society (AGS) prides itself on the very first lab to give diamond cut grades. They’ve introduced their method of grading diamond cuts years before GIA introduced theirs. The AGS has a unique cut grading system where each diamond cut is rated from 0 to 9, where 0 is the ideal grade.

IGI Certification

The International Gemological Institute or IGI is the most popular major jewelry company in the United States and Canada. The IGI works like supply chain companies: fast and efficient. Their prices are also more superior than GIA’s prices which appeals more to diamond sellers and not to consumers.

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