National News
VAJRA INDUSTRY RESEARCH AND ACADEMIC MEET (VAIRAM) 2025 organised by GJEPC, IIT Madras inaugurated in Chennai
The Vajra Industry Research and Academic Meet (Vairam) 2025, a joint effort by GJEPC and InCent LGD IIT Madras, was officially introduced at the IITM Research Park in Chennai.
Madras at IITM Research Park, Chennai, was unveiled by Prof. V Kamakoti, Director, IIT Madras, Prof M S Ramachandra Rao, InCent-LGD, IIT Madras, Mr. Manish Jiwani, Co-Convener, LGD Committee, GJEPC and Mr. Sabyasachi Ray, Executive Director, GJEPC among other dignitaries and industry experts.
The workshop features several panel discussions. “Beyond Gems: Next-Generation Applications of OLab-Grown Diamonds” explores LGDs’ potential in various industries beyond jewellery. “Lab-Grown Diamond Growth and Treatment Recipes and Challenges” delves into the intricacies of CVD and HPHT methods. “Diamond Quality Checks and Certification” addresses the crucial need for standardised quality control for gems, jewellery, and seeds. “Lab Grown Diamond Machines and Processing Equipment” will highlight the importance of indigenous equipment manufacturing to bolster India’s self-reliance. The workshop has drawn 150 + participants from the industry.
Key Takeaways
Diamond Quality Checks & Certification:
- Advanced treatments challenge LGD grading and certification accuracy.
- Key challenges: ensuring grading accuracy, standardization, and detecting undisclosed synthetics.
- Emphasis on advanced testing methods, tech-driven grading, and industry consistency.
- Traceability of tested items is a major issue.
- LGDs are both supplementary and complementary to the diamond industry.
- Mimicking natural diamond growth patterns in LGDs remains a challenge.
LGD Growth & Treatment Recipes: Key Takeaways
- Increasing nitrogen in HPHT accelerates growth, benefiting gem-quality diamonds but not other industrial uses.
- Focus on optimizing growth parameters, impurity control, and enhancement for superior diamonds.
- Challenges include consistency, reducing defects, scalability, and reliance on high-purity raw materials.
- Future focus on refining processes, improving sustainability, and enhancing research-industry collaboration.
Diamond Quality Checks & Certification (Continued): Key Takeaways
Strengthening quality assurance frameworks is essential to ensure consumer trust globally.
Grading LGDs differs from natural diamonds, especially in color; secondary reference masters needed.
Labs must assess hue saturation and intensity, not just color for LGDs.
Clarity characteristics differ due to metallic inclusions in LGDs.
Color grading challenges arise in borderline clusters where AI struggles.
LGDs are cut for perfection, unlike natural diamonds, which are cut for weight retention.
National News
PNGS Reva Diamond Jewellery Limited Posts Record Q4 FY26, Nearly Doubles Core Diamond Business Year-on-Year
Revenue surges 139% YoY in Q4 FY26, Driven By Strong Diamond Demand, Festive Traction, and Continued Retail Expansion
PNGS Reva Diamond Jewellery Limited, a branded certified natural diamond jewellery retailer backed by the 190+ year legacy of the P. N. Gadgil & Sons Group, reported robust revenue growth for the quarter ended March 31, 2026, reflecting strong consumer demand and continued retail expansion momentum.
Revenue from Operations for Q4 FY26 stood at Rs. 1,382.14 million, registering a 139.07% year-on-year increase compared to Rs. 578.14 million in Q4 FY25. Excluding gold sales, revenue grew 96.90% YoY, highlighting strong growth in the Company’s core diamond jewellery segment. (Figures are subject to limited review by Statutory Auditors.)

The quarter’s revenue included Rs. 243.81 million from gold sales, arising from the disposal of excess gold received as part consideration for diamond jewellery purchases.
Operationally, performance was supported by strong festive and occasion-led demand. Gudhi Padwa sales rose to approximately Rs. 70 million, up from Rs. 20 million last year (2.5x growth), while Valentine’s Day also contributed meaningfully to quarterly performance.
Retail expansion remained a key growth driver. In March 2026, the company added 1 COCO (Company-Owned Company-Operated) store and 1 Shop-in-Shop (SIS) outlet, taking the total store count to 36 (2 COCO + 34 SIS stores) as against 33 SIS stores a year ago. The shift toward a COCO-led format aims to enhance operating leverage and support long-term scalability.
Commenting on the performance, Amit Modak said:

“Our Q4 performance reflects a structural shift towards branded and certified natural diamond jewellery. Encouragingly, we are seeing deeper customer engagement and repeat purchases. As we expand our COCO footprint, our focus remains on building a scalable retail platform with strong inventory discipline and a consistent brand experience.”
Looking ahead, the company plans to roll out ~15 COCO stores over the next 24 months, supported by IPO proceeds allocated towards store capex, inventory, and brand-building initiatives. One store has already been launched in March 2026.
In parallel, PNGS Reva will continue leveraging SIS placements within promoter group stores, enabling capital-efficient expansion alongside exclusive outlets.
With a disciplined expansion strategy across Maharashtra and high-growth pan-India markets, and backed by the strong heritage and credibility of PNGS, the company is well-positioned to sustain growth momentum in the organised diamond jewellery segment.
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