πŸ’Ž Certified Gemstone Testing Lab β€’ πŸ“ˆ Accurate Reports β€’ πŸ”¬ IGI & GIA Equivalent Standards β€’ 🚚 Fast Turnaround β€’ πŸ† Trusted by Jewelers & Customers Across India β€’ πŸ“ž +91 9885019024

About Us

Vishwakarma Diamond & Gem Testing Lab, a leading name in Diamond and Gemstone Testing & Certification services. Our lab is equipped with cutting-edge technology, we provide accurate and reliable Diamond & Gemstone Testing to ensure the authenticity, quality, and value of your Diamonds & Precious stones. We offer a range of services, including:
Diamond grading and certification
Gemstone identification and authentication
Detection of synthetic diamonds and gemstones
Diamond and Gemstone quality checks.
Sale and purchase of Raw Diamonds & New Gemstones.
Sale of Karungali mala’s, Rudrashaka’s, Pearls etc.
Our goal is to build trust and confidence in the diamond and gemstone industry, and to help individuals and businesses make informed decisions when buying or selling Diamonds & Precious stones. Whether you are a jeweler, trader, or an individual buyer, our advanced testing methods and transparent certification process help you make decisions.

how we work

01.Diamond & Gemstone Testing

Authenticity Check – Determines whether the gemstone is natural, synthetic, or treated.

Advanced Optical & Spectroscopic Analysis – Identifies the internal and external features of the stone.

UV Light, Magnification & Microscopy Tests – Helps detect treatments and inclusions.

02. Diamond Certification & Grading

4C Grading (Cut, Color, Clarity, Carat Weight) for diamonds.

Natural vs. Lab-Grown Diamond Detection – Using advanced CVD & HPHT screening.

Fluorescence & Hardness Testing – To confirm the authenticity of diamonds.

03.Gemstone Certification & Identification

Identification of all precious & semi-precious stones (Rubies, Sapphires, Emeralds, Alexandrite, Tanzanite, etc.).

Advanced RI (Refractive Index) & SG (Specific Gravity) Tests for precise gemstone analysis.

Inclusion Analysis Using High-Powered Microscopy – Helps determine the gem's origin.

We Analyse Diamonds & Gems With

Diamond Detector Massive Machine to differentiate Original & Artificial Diamonds

HPHT

High Pressure & High Temperature

CVD

Chemical Vapour Deposition

CZ

Cubic Zirconia

AD

American Diamond

Synthetic

Lab-created stones detection

Refractive Index

Precision measurement of light refraction

UV Light

Ultraviolet light fluorescence test

Microscope

Detailed internal & surface inspection

SRDR

Single Reflective / Double Reflective Analysis

10x Loop

Magnification for clarity, inclusions & cuts