Polki jewellery has always held a unique place in India’s traditions. Uncut diamonds, with their raw brilliance and natural shapes, carry an antique charm that feels regal, intimate, and deeply cultural. Once reserved almost exclusively for brides and heirloom treasures,...
As we enter the most lucrative quarter of the year, one thing is clear. This festive season isn’t about bigger displays or louder sparkle. It’s about depth. The consumer mindset has matured, and so must the industry’s response. Shift in...
GSI’s Colored Stone Professional (CSP) Diploma programme, recognised for its innovative combination of theoretical knowledge and practical, real-world experiences, recently embarked on an educational mine visit to Sri Lanka’s renowned Rakwana Gem Deposit. As part of the recent CSP student...
Ramit Kapur, Gemological Science India’s Managing Director explains why empowered sales staff, digital transparency, and global best practices are essential for India’s gem and jewellery industry to stay competitive India is the world’s second largest consumer of natural diamonds, and...
Located near the jewellery hub of Camac Street, the lab is strategically poised to provide jewellery manufacturers, traders and retailers with GSI‘s world renowned services in their city Kolkata, 23 September, 2025: Gemological Science International (GSI) proudly announced the official launch...
Showcasing trusted certification, natural diamond storytelling, educational outreach, and advanced grading reports, the lab reinforced leadership across India’s jewellery ecosystem GSI as Trusted Laboratory Partner for India’s Jewellery Supply Chain Gemological Science International (GSI), a global leader in gemological certification,...
India's gems and jewellery sector faces significant challenges and potential job losses as new US tariffs loom, leading to a projected slump in exports. India’s employment-intensive gems and jewellery units expect the current slump in exports to prolong if extra...
Diamond exports to the US, a key market, declined 30 percent in 2024 due to factors including supply chain disruptions, economic uncertainties, a shift in interest towards affordable jewellery, and increased competition from lab-grown diamonds. Indian diamond exporters are facing...
Gemstone certification is becoming vital for India’s fast-growing jewellery market. A certified gemstone comes with a report from an independent lab. The report verifies the stone’s type, quality, weight, colour, and whether it is natural or lab-grown. It also confirms...
"We are proud to support Tanishq in its mission to bring a higher level of transparency and education to jewellery retail. Our programs are designed to empower sales professionals with gemological tools that inspire trust and confidence." - Ramit...
Gemological Science International (GSI), headquartered in New York, operates 13 laboratories strategically located in major global hubs for diamond and gemstone manufacturing and trade, including the United States, India, Hong Kong, Dubai, and Thailand.
All GSI laboratories grade using the same methods and adhere to the same standards. Every laboratory is staffed with highly trained professionals who have years of grading experience and an extensive gemological background.
The phrases “GSI Certificate” and “GSI Certified” are industry shorthand for GSI grading or identification reports. What this means to you is that expert gemologists and trained professionals meticulously evaluated the item. When your diamond, jewelry or gemstone is accompanied by a GSI grading report, you can be completely confident in the accuracy and objectivity of the evaluation.
GSI diamond grading and identification reports can be found in jewelry stores worldwide and online. Insist on a GSI grading report when shopping for a diamond, jewelry or gemstone.
Every GSI grading report is available on our website. Please visit gemscience.net and go to “verify your report”. Enter your GSI report number and you’ll instantly have access to a digital copy of it. You can also email us through the website to request a copy.
