What Is Diamond Certification?

Diamond certification is a document that includes a thorough assessment of a diamond’s characteristics by certified gemologists. These experts evaluate the diamond based on the 4Cs — cut, color, clarity, and carat weight — and then document their findings in a detailed report. This certification process helps determine a diamond's worth and provides peace of mind for buyers.

The 4Cs: The Cornerstone of Diamond Grading:-

Carat Weight: This measures the weight of the diamond. One carat is equivalent to 0.2 grams. The value of a diamond increases with its carat weight.
Cut: The cut grade assesses how well the diamond has been shaped and faceted, which affects its brilliance and sparkle. Grades range from Excellent to Poor.
Color: Diamonds are graded on a scale from D (colorless) to Z (light yellow or brown). The closer to colorless, the higher the value.
Clarity: This measures the presence of internal or external flaws, known as inclusions and blemishes. Clarity grades range from Flawless (FL) to Included (I3).

Our ELGA Superior Stones are made with CVD growth method. For Quality Assurance we have created 10X QC Standard: Each ELGA diamond undergoes rigorous quality control—tenfold! We leave no room for imperfections.

Why We Don’t Use Third-Party Grading

While organizations like IGI and GIA are respected in the industry, we have identified issues with inconsistency and lack of guarantees. By using in-house gemologists and state-of-the-art technology, we ensure the highest standards of accuracy and reliability in our diamond grading process.

Our Full Lifetime Warranty and value guarantee offer additional peace of mind, something third-party graders do not provide.

Not all diamonds are graded the same.

One of the major concerns with diamond grading is inconsistency. Even within the same organization, different graders remain subjective and may assess diamonds slightly differently. we have 10X QC checking system.

Third-party grading is not guaranteed.

Grading agencies face a difficult job. They receive a diamond with no context or other input and must detect inclusions and various degrees of color with only the help of a microscope with their own eyes.

Inconsistencies happen — which is why even the most celebrated grading agencies offer no guarantee on their grades.

ELGA created diamond certifications, however, are backed by a lifetime warranty and value guarantee.

Diamond grading is not the same across the globe.

As the diamond industry is global, the practices and standards of grading can vary from one region to another. Although labs strive to maintain global consistency, differences in training, equipment, and local market preferences can influence grading outcomes.

Speak With Our Diamond Experts

For a deeper understanding of diamond certification and personalized guidance in selecting an ELGA created diamond, our diamond experts are here to help. They can provide you with in-depth education and assist you in making an informed decision.

ELGA Grading Process

Starting with Excellence

To create an ELGA stone, we begin with an already exceptional rough stone.

CVD Growth Method

Our ELGA Superior Stones are produced using the Chemical Vapor Deposition (CVD) growth method.

10X QC Standard

For quality assurance, we have established a 10X QC Standard. Each ELGA diamond undergoes rigorous quality control—tenfold! We leave no room for imperfections.

Journey of ELGA Diamond Grading

Stage 1 – Planning

Our process begins with assessing clarity in our rough planning department, utilizing the highest standard planning equipment available.

Stage 2 – Blocking

In this pivotal stage, we carefully place the stone into a model, tailoring it to the specific shape and design chosen for the stone.

Stage 3 – Bottom Part Polishing

Our skilled bottom polishers meticulously refine the lower portion of the diamond. Upon completion, the stone is then passed to our bottom QC team for evaluation.

Stage 4 – Top Polishing

Our proficient top polishers commence the polishing of the upper portion of our diamond. During this stage, only the initial 8 top facets are polished, with additional facets for enhancing brilliance addressed in subsequent stages.

Stage 5 – Girdle Polishing, Star Facets, and Halves Facets

This stage marks a pivotal moment as it stands as the final step before completion, demanding utmost concentration and attention.

Stage 6 – Final Grading

Upon completion of the polishing process, the finished stone is handed over to our expert gemologists for final grading. Each facet is examined, and even the slightest imperfection prompts immediate correction by our skilled polishers.

From Pile to Perfection

We handpick diamonds from a vast selection, choosing only the best. Our commitment to quality ensures that every stone is a masterpiece, and our craftsmanship is unmatched.

Extreme Quality Check

At our facility, we conduct thorough quality checks, separating all diamonds that emerge with VVS clarity and Colorless D,E—the highest color grades suitable for jewelry making.

Diamond Parameters Checked

Clarity: Each diamond is meticulously examined to ensure it meets our stringent VVS clarity standard.
Color: We select only the highest color grades, D and E, ensuring our diamonds are colorless and pristine.
Cut: Precision in cutting is paramount, focusing on facets, symmetry, and overall shape.
Carat: We ensure each diamond meets our weight standards, balancing size and quality.
Polish: Every diamond is polished to perfection, enhancing its natural brilliance.
Symmetry: We check for perfect alignment of facets, ensuring each diamond is a flawless gem.
Fluorescence: Diamonds are tested for fluorescence to meet our strict quality benchmarks.
Inclusions: Thorough inspection for any inclusions that could affect the diamond's appearance.
Luster: Ensuring each diamond exhibits a high-quality luster.
Overall Aesthetic: The final evaluation considers the diamond's overall appearance, ensuring it meets ELGA's superior standards.