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With 23 locations across 5 countries and a team of 500+ professionals, SGL delivers science-backed, reliable grading solutions. Through engineered innovations and immersive Experience Centres, we bring transparency & assurance, ensuring every certificate remains a symbol of trust & precision, delivering peace of mind, assured.

Our Legacy Timeline

SGL’s Legacy

What began as a vision to bring integrity and transparency to the diamond trade has today grown into a global presence across 5 countries, 23 locations and 207 geo footprints.

Founded in 2007 in London, SGL has become one of the world’s most trusted names in diamond certification, powered by 500+ dedicated professionals worldwide.

In recent years, we’ve launched Experience Centres in Dubai, Mumbai, Jaipur, Surat & Hyderabad! Welcoming you with spaces to engage transparently with state-of-the-art instruments & gemmologists with expertise in the trade.

Every certificate we issue is more than just a document; it is a symbol of reliability, backed by science and driven by passion.

Our Instruments

Confidence Through Certification

Diamond Grading Reports
The Importance Of Diamond Grading Reports

Let's admit, diamonds are expensive. More so, you don't buy them frequently (like your groceries). That said, diamonds are a considerable financial investment and symbolize trust and commitment.

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Diamond Grading Guide
How To Read A Diamond Grading Report? A Beginner's Guide

Diamond grading reports vouch for the authenticity and characteristics of your diamond. Its importance is immeasurable. Since it is a scientific blueprint, it would be wise to understand its key sections.

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Diamond Certification Guide
A Complete Guide To Diamond Certification

Diamond certification ensures that each stone is assessed by experts under strict parameters. This guide explains how certified diamonds uphold authenticity, transparency, and buyer confidence.

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SGL Insights

Diamond Jewellery
Avoid These Mistakes While Buying A Diamond Engagement Ring

Table of Contents Congratulations! You've found your significant other, and you're equipped to embark on a journey packed with love and commitment.

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Diamond Treatments
All You Need To Know About Diamond Treatments

Diamond treatment refers to all those synthetic processes that enhance a diamond's color or clarity. It is a known fact that naturally flawless diamonds are rare.

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Diamond Scams
5 Most Common Diamond Scams And How To Avoid Them

Diamond scams are becoming more frequent these days. To avoid being ensnared in one of them, make sure to read all the pointers and techniques.

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