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How to Get Diamond Certified: A Step-by-Step Guide

by Chante Walker
Last updated on October 16, 2023
How to get diamond certified

Have you ever wondered about the true value of the diamond sitting on your finger or in your jewelry box? It’s not just about its price tag; a diamond’s true value lies in its certification. In this article, we’ll dive into the world of diamond certification, guiding you through the importance of reputable gemological labs, the step-by-step certification process, and the types of certificates and reports you can obtain. So, let’s venture on this sparkling journey together and discover how to get Diamond Certified, ensuring your precious stones are truly worth their weight in carats!

Understanding Diamond Certification

Analyzing a loose diamond with a monocular.

When it comes to purchasing diamonds, especially for a diamond engagement ring, many customers are left wondering about its true value and authenticity. That’s where diamond certification comes in.

A diamond certificate issued by a reputable gemological lab, such as the Gemological Institute of America (GIA), attests to the characteristics of your diamond and assists in evaluating its value. By choosing a diamond GIA-certified, you can ensure the quality and authenticity of your investment.

The 4Cs of diamond grading are crucial elements that determine a diamond’s quality and value. Carat weight, color, clarity, and cut quality are essential for a diamond to be GIA-certified. Respected gemological laboratories, like those that issue GIA diamond certificates, are responsible for confirming the accuracy of the diamond’s characteristics, ensuring the highest level of quality in the diamond industry. Additionally, they offer laser inscriptions to verify the authenticity of the diamond.

With a fundamental comprehension of diamond certification in place, we will delve into the 4Cs more extensively.

The 4Cs of Diamond Grading

The 4Cs of diamond grading, as included in GIA diamond grading reports, are:

  1. Carat
  2. Cut
  3. Color
  4. Clarity

These components are of great importance in diamond grading as they determine a diamond’s quality and value. Carat weight is the only indisputable fact in diamond grading and is a crucial factor in determining the value of a diamond.

With carat weight specified, the gemologist is responsible for interpreting the other three elements of the 4Cs. These aspects and carat weight contribute to the diamond’s overall appearance, sparkle, and value.

Certification from a renowned gemological lab praised for its consistent and commendable diamond grading is necessary to evaluate your diamond accurately.

Reputable Gemological Labs

  • GIA: Gemological Institute of America
  • GCAL: Gem Certification and Assurance Lab
  • AGS: American Gem Society
  • IGI: International Gemological Institute
  • EGL: Emteem Gem Laboratory
  • HRD: Hoge Raad Diamant Antwerp

These esteemed organizations play a vital role in the diamond certification process, as they provide grading reports that accurately describe the characteristics of a diamond.

There are distinctions between these labs, such as the 4Cs they appraise, the scale they employ to grade diamonds, and the elements they include in their grading reports. However, all honorable gemological labs are committed to maintaining high grading standards and providing accurate and consistent evaluation of diamonds.

Opting for a reliable lab for your diamond certification guarantees that your diamond’s intrinsic value and characteristics are assessed and recorded properly.

The Certification Process: Step by Step

Diamond close up held by a tweezer.

Having grasped the significance of diamond certification and reliable gemological labs, we will now go through the process of getting your diamond certified.

To begin the certification process, sending the diamond to a GIA-certified lab for analysis and evaluation is recommended. Prior to sending your diamond, you should ensure that it is properly insured, as it’s always better to be safe than regretful.

Once your diamond is prepared, it’s time to submit it for certification. For example, the process typically takes around three weeks for GIA certification, ensuring a thorough and meticulous evaluation of your precious stone.

Selecting a Gemological Lab

When choosing a lab, it’s essential to consider factors such as reputation, consistency, and grading standards.

Selecting one of these labs will ensure that your diamond is evaluated by experienced professionals following industry-standard practices.

To verify the accuracy of a lab’s grading, you can assess their grading reports and compare them to those of other labs.

When assessing the cost of certification, it’s important to consider factors such as the certification fee, turnaround time, and any additional services that may be available.

Preparing Your Diamond

It’s important to correctly secure and package your diamond for safe transit prior to certification submission. This includes cleaning the diamond and ensuring it is free from any dirt or debris that may impact the evaluation process.

Additionally, gather any documentation you may have, such as previous appraisals or sales receipts, to help provide context and background information for the gemologist evaluating your diamond.

Submitting Your Diamond

Once your diamond is prepared, you can submit it to the chosen lab for assessment and authentication.

This can be done either through a local fine jewelry retailer or by directly sending the loose stone to the laboratory.

Upon completion of the evaluation, the laboratory will provide a certification report outlining the characteristics of your diamond.

This report will serve as a testament to your diamond’s quality and authenticity, giving you peace of mind and assurance in your investment.

Types of Diamond Certificates and Reports

One sparkling loose lab created diamond.

A multitude of diamond certificates and reports cater to varying needs and preferences. This section will examine the variety of options available, namely full diamond reports, dossier reports, and eReports. Each type of report offers varying levels of detail and information about your diamond, so it’s essential to choose the one that best suits your requirements.

A full diamond report provides the most comprehensive information on your diamond’s 4Cs, measurements, and other characteristics. A dossier report, on the other hand, is typically used for diamonds under 1.0 carat and offers a more concise evaluation of the diamond’s properties.

Lastly, eReports are a digital alternative to traditional diamond reports, offering increased security, cost-efficiency, and accessibility. We’ll delve into each report type to assist you in determining the best fit for you.

Full Diamond Report

A full diamond report is a comprehensive document that provides detailed information regarding your diamond’s 4Cs, measurements, and other characteristics. This type of report is essential for authenticating your diamond’s quality and worth, as it offers a complete evaluation of its attributes.

The GIA Diamond Grading Report includes information on the diamond’s:

  • Shape
  • Dimensions
  • Carat weight
  • Color grade
  • Clarity grade
  • Cut grade
  • Polish grade
  • Symmetry grade
  • Fluorescence grade
  • Inscriptions
  • Comments regarding any inclusions or treatments that may affect the gem’s brilliance.

Overall, a full diamond report is an invaluable resource in verifying your diamond’s quality and value.

Dossier Report

A dossier report is a more economical alternative to a full diamond report, providing information about a diamond’s 4Cs and measurements, typically for diamonds under 1.0 carat. This type of report is useful for those who want a less detailed yet still accurate assessment of their diamond’s properties.

Although it may not include as many attributes as a full report, such as the GIA diamond plot, a dossier report still provides essential information to help you understand your diamond’s quality and value.


An eReport is an innovative digital substitute for customary diamond reports, offering increased security, cost-efficiency, and accessibility. These reports provide all the same information as traditional reports but are delivered electronically. This allows you to easily access, share, and store your diamond’s information.

eReports are an excellent option for those who want a modern, eco-friendly alternative to traditional paper reports while still receiving the same level of detail and accuracy in their diamond assessment.

Costs and Factors Affecting Diamond Certification Pricing

4 sets of diamond earrings: Oval, round, emerald and pear shape.

Diamond certification cost is subject to variations based on factors like the number of diamonds being certified, whether the diamond is submitted in person and the diamond’s 4Cs. This section will explain how these elements can affect certification costs and guide you in deciding the most suitable option for your needs.

We will also explore the various factors that influence pricing, such as diamond attributes, the type of report, and additional features available with certification. By understanding these factors, you can make a more informed decision when selecting a gemological lab and certification service to suit your budget and requirements.

Diamond Attributes

The primary factors influencing the cost of diamond certification are the 4Cs, with carat weight having the greatest impact. Diamonds with higher carat weights, better color grades, higher clarity grades, and superior cut quality will command higher certification fees due to their increased value and rarity.

Type of Report

The type of report you choose for your diamond certification will also affect the cost. A full diamond report is the most comprehensive and typically carries a higher price tag, whereas a dossier report is more economical, especially for diamonds under 1.0 carat.

eReports, as a digital alternative, may offer cost savings compared to traditional paper reports while still providing the same level of detail and accuracy. Consider your needs and budget when selecting the type of report for your diamond certification.

Additional Features

Additional features, such as laser inscriptions and sealed cases, can also impact the cost of diamond certification. Laser inscriptions are permanent markings on the diamond used to identify the diamond and its respective certification, while sealed cases provide a protective environment for your diamond during transportation and storage.

While these additional features may result in increased costs, they can provide added security and peace of mind for buyers and sellers alike.

Home Diamond Testing vs. Professional Certification

3 loose round diamonds of different weights on top of a hand.

Although some might feel inclined to test their diamonds at home with methods like visual inspections or diamond testers, these techniques fall short of matching the precision and trustworthiness of professional certification. Home diamond testing methods may provide a preliminary assessment of the diamond’s authenticity, but they cannot account for the intricate details and characteristics that determine its true value.

On the other hand, professional certification involves sending the diamond to a reputable gemological laboratory. In this case, a trained professional completes a comprehensive analysis.

When determining your diamond’s true value and characteristics, nothing beats the assurance and precision offered by professional certification.

Selling a Certified Diamond

A princess cut diamond ring with a rose gold band on a hand with a backdrop of white linen cloth.

If you are considering selling your certified diamond, numerous advantages come with offering a certified stone.

  • Guaranteed authenticity
  • Augmented value
  • Transparency
  • Straightforward resale

Certification gives buyers and sellers confidence in the transaction, as it attests to the diamond’s true value and characteristics.

Additionally, a certification report can be a valuable selling tool, as it provides potential buyers with the necessary information to make an informed decision about their purchase. The certification also increases its appeal and value in the eyes of potential buyers.

Frequently Asked Questions

What lab does Clean Origin work with?

Clean Origin works with many laboratories, but the top 2 certification labs are the IGI and GCAL.

How do you get a certified diamond?

An academically trained gemologist must analyze and evaluate them to get certified diamonds. A laboratory does the evaluation, such as the GCAL or GIA, and once completed, the lab issues a report or “certificate.”

The certificate will provide information about the diamond’s characteristics, such as the cut, color, clarity, and carat weight. It will also provide a grading scale for each characteristic.

How much does it cost to get your diamond GIA certified?

The cost of getting your diamond GIA certified depends on numerous factors but typically ranges between $150 and $300.

Is a diamond-certificaition worth it?

For the average consumer, a diamond certification is definitely worth it. It ensures that the quality of the diamond you are buying is exactly what you paid for.

How long does it take to get a diamond certified by GIA?

GIA provides thorough diamond grading reports, which typically take up to three weeks. The cost for certification is based on carat weight and can range from $50 to thousands of dollars.

What are the 4Cs of diamond grading?

The 4Cs of diamond grading, which are essential for determining a diamond’s quality and value, are carat weight, color, clarity, and cut quality.