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Our Service

Welcome to gem testing and hallmarking service

Jewellery Certification

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DSL Jewelry certificate is used to document jewelry pieces and identify the characteristics of the precious stones...

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GemStone Certification

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DSL have equipped ourselves with the most technologically advanced equipment available for the use in the identification...

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Diamond Certification

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Diamond of gold is a unique project started by government of india, keeping in mind the consumer...

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DSL Lab SERVICES

The INTERNATIONAL GEMOLOGICAL TESTING (DSL) as a Gem Testing and Diamond Grading facility 2015 the updating of the equipment proved. DSL use of the lab facilities in the 2006 and hope that the laboratory services might be in the future. Change and challenges in the Jewellery industry demand a lab that’s going to change along with them. Today, that laboratory is here. With the proliferation of synthetic & treated stones in the market and increasing quality dimensions & criteria, the demand for independent identification & grading reports has arisen tremendously in last few years. DSL Gemological Laboratory is equipped with the most advanced Gemological instruments used for the testing of Gems & Diamonds. The quality analysis is done by qualified Gemologists using the latest tools & techniques. DSL is one of the most trusted names in the field of testing & certification of Gems, Diamonds & Diamond Jewellery.

How We Do This

1
Quality of gems

The “Four Cs” of gem grading stand for color, clarity, cut, and carat (weight). Gemologists grade gemstones based on these properties.

2
Gravity of the stone

The “Four Cs” of gem grading stand for color, clarity, cut, and carat (weight). Gemologists grade gemstones based on these properties.

3
Color shape weight

The “Four Cs” of gem grading stand for color, clarity, cut, and carat (weight). Gemologists grade gemstones based on these properties.