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Align With the Universe - With JSK Gems

JSK Gems
JSK Gems
JSK Gems
JSK Gems
JSK Gems
JSK Gems
JSK Gems

Why Gem Certifications?

Our gemstones are certified by world-renowned laboratories, trusted for their accuracy and reliability.

<strong>Authenticity</strong>

Authenticity

Genuine gemstones, certified and verified for complete buyer confidence.

<strong>Trust</strong>

Trust

Decades of reliability, delivering only certified and natural gemstones.

<strong>Self Satisfaction</strong>

Self Satisfaction

Owning real gemstones brings joy, confidence, and personal pride.

Better Resale Value

Certified gemstones hold a stronger demand and lasting market value.

JSK Gems

Gemological Institute Of America (GIA)

The Gemmological Institute of America (GIA) is a globally respected non-profit organization devoted to advancing research and education in gemology and jewelry arts. Since its founding in 1931, GIA has worked to protect both buyers and sellers by setting internationally recognized standards for gemstone evaluation. Its services include in-depth research, gemstone identification, diamond grading, and specialized educational programs.

In the 1940s, GIA introduced the famous “4 Cs” of Diamond Quality — Cut, Carat, Clarity, and Color — along with the International Diamond Grading System™, both of which remain the global benchmarks for assessing diamonds today.

GIA has been closely associated with the Indian gemstone and jewelry industry since 2004, when it opened its Mumbai campus, followed by a state-of-the-art grading laboratory established in 2008. Through its work, GIA continues to uphold integrity, trust, and excellence in the world of gemstones.

JSK Gems

GRS GemResearch Swisslab

GemResearch SwissLab (GRS) is a globally recognized, independent gemological laboratory founded in 1996 by Dr. Adolf Peretti. Renowned for its expertise, GRS specializes in identifying and characterizing high-quality gemstones from both newly discovered and traditional mining regions. Their work also extends to detecting gemstone imitations, synthetics, and advanced treatments, along with pioneering efforts in color grading and gemstone color branding.

With laboratories strategically located across major global centers, GRS is equipped with state-of-the-art technology to meet the challenges of modern gem testing. Their team includes internationally acclaimed professors, scientists, and gemologists, making GRS a trusted authority in gemstone certification and research.

JSK Gems

International Gemological Institute (IGI)

The International Gemological Institute (IGI) is the world’s largest independent laboratory for diamond and colored gemstone certification. Unlike many others, IGI operates under a single central governing body, ensuring consistency and reliability with one globally accepted grading system.

Beyond the standard 4 Cs — Color, Clarity, Cut, and Carat Weight — IGI introduces a fifth “C”: Confidence. This gives every buyer the assurance they need when investing in diamonds or colored gemstones.

At our store, we are proud to offer a wide selection of IGI-certified gemstones, giving you complete peace of mind with every purchase.

JSK Gems

Indian Institute Of Gems & Jewellery (IIGJ)

The Indian Institute of Gems & Jewellery (IIGJ), an initiative by GJEPC, was established to support the sustainable growth of India’s gem and jewelry industry. Recognized as one of the country’s leading facilities, IIGJ specializes in certifying colored gemstones, diamonds, and fine jewelry.

Equipped with internationally standardized infrastructure and advanced technology, the institute delivers reliable gemological services to clients across the globe. Its state-of-the-art tools, automated diamond screening machines, and high-precision spectrometers enable the detection of even trace elements, ensuring highly accurate and trustworthy certification reports.

JSK Gems

Gemmological Institute Of India (GII)

The Gemological Institute of India (GII), established under the Gem and Jewellery Export Promotion Council (GJEPC), is one of the country’s most advanced and benchmark-setting institutions for gemstone certification. Renowned for its progressive approach, GII provides reliable testing and grading reports for diamonds and colored stones.

It is also recognized as the only laboratory in India with a fully equipped research center, where gemstones undergo comprehensive testing for authenticity, treatments, color, carat weight, and origin — ensuring complete transparency and trust for every report issued.

JSK Gems

Indian Diamond Institute (IDI)

The Indian Diamond Institute (IDI), established as a project of the Gem & Jewellery Export Promotion Council (GJEPC) and supported by the Ministry of Commerce & Industry, Government of India, is a premier institute dedicated to education, research, and certification in diamonds, gemstones, and jewelry. Based in Surat, the heart of India’s diamond industry, IDI provides world-class training, state-of-the-art gemological laboratories, and advanced research facilities.

With a mission to uphold authenticity, innovation, and professional excellence, IDI plays a pivotal role in strengthening India’s position as a global leader in the gem and jewelry trade. Its gemological reports are known for their accuracy, transparency, and credibility, making IDI a trusted name for both industry professionals and consumers worldwide.