SGL Labs is a leading Lab-grown Diamond certification company with operations in India, UK, US, and Bangladesh. Lab-created diamonds are gaining popularity in the industry as they are sustainable and ethical alternatives. However, this makes it important for you to ensure what you are investing in.

To be able to distinguish between a natural and lab-grown diamond, you need a certification service provider who provides comprehensive analysis and a detailed report for diamonds’ origin, quality, and authenticity. 

Non-certified diamonds will take away your peace and with the increasing scams, it is important that you are sure of what you are buying. This is where SGL lab-grown reports come into the picture.

We know that all lab-grown diamonds aren’t the same. Our services are hence designed to give consumers the assurance that they need while purchasing a genuine lab-grown diamond of high quality.

Lab-grown diamonds are identified, screened, and graded using technology that generates a report based on the international diamond grading system. This report includes the following information:

  • Determination of HPHT and CVD laboratory-grown diamonds
  • Assessment of a diamond’s 4Cs—cut, color, clarity, and carat weight
  • A plotted diagram of its clarity characteristics
  • A graphic representation of the diamond’s dimensions
  • Nature of Origin

Lab Grown Diamond Report's Security Features

Peace of mind, assured is not just a motto for SGL, it is a promise of trust and reliability. Every lab-grown diamond report issued from our end is safeguarded and secured with various layers of protection, setting higher benchmarks for fair trade and professionalism. 


QR Code

UV & Micro text

Security Paper

Lab Policy

Access to data

SGL lab grown diamond reports are freely available to view, verify and download. All the SGL certification data is maintained systematically and can be presented on demand as a right to consumer perusal limited to the certificate.


Providing professional diamond identification and grading services backed with the latest technology SGL is at the front end of the laboratory-grown diamond detection scenario. SGL’s specialized services and laboratory-grown detection instruments help in the easy identification of natural diamonds.

Security features

UV text visible under UV/Blacklight, Secured 3D holograms and a special paper make the SGL certificate a document that cannot be tampered with or easily duplicated. The diamond sealing also displays many tamper-evident features to provide peace of mind.

Client anonymity

No efforts are spared to maintain client confidentiality, anonymity, and an unbiased grading report. SGL follows a system of barcodes and software modules to ensure the grading and processing of diamonds and their certificates are undertaken without any knowledge of the client details.

Additional Services

We provide unique additional services; tailored for your needs to add value to your diamond.

For further information, contact your nearest SGL Branch.

Hearts & Arrows

Hearts & Arrows is an overview of a diamond’s reflective scope and physical characteristics, carried out with a detailed assessment of its cut and overlapping projections.

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Laser Inscription

SGL tested diamonds carry laser inscribed numbers, letters, trademarks, and logos on the girdle of a diamond allowing the diamond to be easily identified. The inscription is visible under 10x magnification.
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Diamond Sealing is the ultimate security tool and ensures complete transparency and assurance of a diamond vis-à-vis the colour, clarity and cut grade.

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Our lab grown diamond certification Practice

SGL’s lab-grown diamond report details an in-depth analysis of the diamond’s properties (physical and chemical). We assess diamonds’ 4Cs (carat weight, colour grade, clarity, and cut) and their fluorescence, phosphorescence, and other optical characteristics.

Our in-house team of qualified gemologists uses advanced technology such as Chemical Vapor Deposition (CVD) and High-Pressure High-Temperature (HPHT) to evaluate the diamond quality, ensuring that you receive the most accurate information about the type of diamond you have. Our lab reports are globally accepted and recognized.

So with our certificate be sure to receive a detailed analysis like a plotting diagram that shows the location of any inclusions or other features for the lab-created diamonds. Information like this helps you in making an informed purchasing decision based on the clarity grade and color grade of your diamond.

Contact us today to learn more about our lab-grown diamond certification services.