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# TGL LAB
- URL: https://gemworldia.com/tgl-lab/
- Published: 2025-10-25T04:34:46.000Z
- Updated: 2026-08-12T19:17:03.000Z
- Author: Raveen Jayasooriya
- Tags: Gem Lab, #top-stories, #verified, #Import 2026-11-12 18:26

**TGL LAB** is a professional gemstone testing and certification laboratory based in **Ratnapura, Sri Lanka**, dedicated to providing **accurate, reliable, and independent gem identification services**. Our mission is to promote transparency, trust, and authenticity in the global gemstone trade.

At **TGL LAB**, every gemstone is examined using **advanced gemological instruments and scientific testing methods** by qualified gemologists. We specialize in identifying and grading a wide range of gemstones including **sapphires, rubies, spinels, alexandrites, garnets, topaz, tourmalines, and other natural and treated stones**.

Each gemstone tested at TGL LAB comes with a **detailed Gem Identification Report**, which includes:

- Gem type and species
- Weight and dimensions
- Optical and physical properties
- Origin analysis (when possible)
- Treatment detection
- High-resolution photographs and security features

We follow international standards aligned with leading laboratories such as **GIA**, **SSEF**, and **IGS**, ensuring all reports meet the highest level of accuracy and credibility.

TGL LAB also offers specialized services including:

- **Gemstone Authentication & Verification**
- **Treatment Detection & Enhancement Analysis**
- **Origin and Traceability Studies**
- **Custom Testing for Jewelers, Dealers, and Collectors**

With a commitment to precision, ethics, and modern gem science, **TGL LAB** serves as a trusted partner to traders, jewelers, and gem enthusiasts across Sri Lanka and beyond.

## **Location :**

### 📍 Visit Our Office

[Mt Everest![](https://gemworldia.com/content/images/icon/maps15_bnuw3a_32dp-6.ico)Mt Everest![](https://gemworldia.com/content/images/thumbnail/AG0ilSyfoqh04a-LcyLmxU4TVOR2OJgCoOazss-q_QFQuiX6xuHqE5bb7CtW2uieV8aoP8CeqTWy4KsOLRUiAK9hLA2Lz0VVmjg0QJUB8V7taLIQ32JD8mcwTucUifmVK4UPyArvsWa2Ag-w900-h900-p-k-no-2)](https://maps.app.goo.gl/Spz4GvGUCaBjGWcDA?ref=gemworldia.com)

![](https://gemworldia.com/content/images/2025/10/Center-for-gem-and-jewellery-1.jpg)

![](https://gemworldia.com/content/images/2025/10/gemlab.jpg)

![](https://gemworldia.com/content/images/2025/10/gemlab81.jpg)

![](https://gemworldia.com/content/images/2025/10/lotus-billie-hughes-with-microscope.jpg)

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City, State 12345" }, { "icon": "💬", "label": "WeChat", "value": "RaveenWeChat", "href": "weixin://dl/chat?RaveenWeChat" }, { "icon": "🔗", "label": "LinkedIn", "value": "Raveen Profile", "href": "https://www.linkedin.com/in/username/" }, { "icon": "📌", "label": "Pinterest", "value": "Raveen Pins", "href": "https://www.pinterest.com/username/" } \] }

Live Location 

### Our Office

Colombo, Sri Lanka

[Open in Maps → ](https://maps.google.com/?q=Colombo,Sri%20Lanka&ref=gemworldia.com)