Gemstone Reports

The standard SGL Natural Diamond Report, providing a full-scale assessment of the 4Cs and diamond authenticity.

Natural Diamond Report

SGL Natural Diamond Mini Report featuring a technical plotting diagram of internal and external stone characteristics.

Natural Diamond Mini Report With Plot

SGL Natural Diamond Mini Report with a detailed graphical representation of diamond proportions.

Natural Diamond Mini Report With Proportions

Sample of the SGL Lab Grown Diamond Mini Report, highlighting the detailed graphical representation and data regarding the physical proportions of the synthetic diamond.

Lab Grown Diamond Reports Content

Sample of the compact SGL Lab Grown Diamond Mini Report, featuring a technical plotting diagram that maps the internal and external characteristics of the synthetic stone.

Lab Grown Diamond Mini Report with plot

Visual sample of the full SGL Lab Grown Diamond Report, providing detailed technical specifications, 4C grading, and origin verification for synthetic diamonds.

Lab Grown Diamond Mini Report with proportions

Technical SGL report sample for natural solitaire diamond jewelry, documenting specific stone grading and mounting details.

Natural Solitaire Diamond JEWELLERY Report

Sample SGL laboratory report for jewelry containing multiple natural diamonds, verifying quality and authenticity.

Natural Diamond JEWELLERY Report

SGL certification sample for high-end jewelry featuring a combination of natural diamonds and colored gemstones.

Natural Diamond and Colored Gemstone JEWELLERY Report

Specialized SGL laboratory report for traditional jewelry styles, including Rosecut, Uncut, or Polki diamond varieties.

Rosecut, Uncut or Polki Diamond JEWELLERY Report

Technical sample of an SGL report for jewelry featuring a lab-grown solitaire diamond, documenting mounting details and synthetic stone grading.

Lab Grown Solitaire Diamond JEWELLERY Report

Sample SGL laboratory report for jewelry containing multiple lab-grown diamonds, verifying the quality and origin of the synthetic stones.

Lab Grown Diamond JEWELLERY Report

Technical sample of an SGL Colored Gemstone Report, featuring a detailed assessment of a loose ruby, including its weight, dimensions, and identification.

Colored Gemstone Report

Sample SGL report for an emerald and gold ring, providing certification for both the colored gemstone and the precious metal mounting.

Colored Gemstone JEWELLERY Report

Comprehensive SGL certificate for a sapphire and diamond ring, detailing the grading for both the natural diamonds and the colored gemstone within the jewelry piece.

Natural Diamond and Colored Gemstone JEWELLERY Report

SGL Labs is a leading gemstone laboratory with around 18 labs across the globe.

Our state-of-the-art equipment and commitment to ongoing research and development ensure that we are always at the forefront of the gemstone testing industry.
We are also known as the best gem testing lab in India.

Our gemstone reports provide a comprehensive analysis of the gemstone, including its origin, treatment, and quality. The report also includes a detailed description of the gemstone,
including its carat weight, shape, colour, clarity, and cut.

Security Features

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

SGL security feature icon: A 3D hologram seal that safeguards the certificate against duplication.
Hologram
SGL security feature icon: A QR code for instant digital certificate validation and authenticity checks.
QR Code
SGL security feature icon: Specialized UV-visible text and micro-printing to prevent tampering.
UV & Micro Text
SGL security feature icon: Official security paper with a custom background for certificate protection.
Security Paper

Lab Policy

Access to Data

SGL 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.

Confidence

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 as per the consumer demands; tailored for your needs to add value to your diamond.
For further information, contact your nearest SGL Branch.

SGL Hearts & Arrows service page: Detailed assessment of a diamond's reflective symmetry and cut precision.

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.

SGL Laser Inscription service page: Microscopic girdle inscriptions for diamond identification and tracking.

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.

SGL Sealing service page: Secure diamond sealing for complete transparency on stone color, clarity, and cut.

Sealing

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.