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
Limelight Lab Grown Diamonds Inaugurates Showroom In Kalyan, Its 8th Exclusive Store MMR
The new store marks Limelight’s 8th exclusive outlet in Mumbai, further strengthening its retail presence across the Mumbai Metropolitan Region reflects its focus on reaching consumers urban markets.
Limelight Lab Grown Diamonds, India’s largest and most trusted lab grown diamond jewellery brand, continues to expand its retail footprint with the launch of its new exclusive store in Kalyan, marking its 8th store in Mumbai. The launch further strengthens the Brand’s presence across the Mumbai Metropolitan Region and reflects its focus on reaching consumers across both established and emerging high-potential urban markets.
The store was inaugurated by Karamjyot Chawla, Director, Limelight Lab Grown Diamonds, along with Regional Partner, Lalit Soni, alongside the brand’s leadership team. The launch marks another significant milestone in Limelight’s continued retail expansion across Mumbai.
The new store brings Limelight’s contemporary lab grown diamond jewellery closer to consumers in Kalyan, catering to an evolving customer base that is increasingly seeking modern, design-led and value-conscious jewellery options.
Designed to offer a contemporary and elevated retail experience, the store showcases Limelight’s extensive collection of CVD studded lab grown diamond jewellery crafted using Type IIA diamonds, globally recognised for their exceptional brilliance and purity. Customers can explore a wide range of classic solitaires, elegant necklaces, statement earrings, bracelets and versatile everyday jewellery, catering to both occasion-led purchases and modern lifestyles.
Kalyan represents an important market within the Mumbai Metropolitan Region, with a growing urban consumer base and evolving preferences towards contemporary jewellery formats. With its presence in Khadakpada, one of the most prominent, well-developed residential and commercial localities in Kalyan, Limelight aims to make lab grown diamond jewellery more accessible to consumers while offering a retail experience centred around design, quality and transparency.
To celebrate the launch, Limelight is offering special launch benefits for customers, giving them the opportunity to indulge with and shop their favourite diamond jewellery pieces at last year’s gold rate. Remarkably enticing, the offer is valid for a limited period only. (T&C apply.)
Pooja Madhavan, Founder & Managing Director, Limelight Lab Grown Diamonds, said:
“The launch of our 8th store in Mumbai is an important milestone for Limelight and reflects our continued confidence in the region. Mumbai has been an important market for us, and we are seeing growing consumer interest in contemporary diamond jewellery and newage formats that align well with their beliefs and ensure no compromises in quality. With our new store in Kalyan, we are more than delighted to extend the Limelight experience to a wider consumer base, cater to their distinctive demands and making high-quality lab grown diamond jewellery more accessible across the region.”

Karamjyot Chawla, Director, Limelight Lab Grown Diamonds, added:

“Reaching our 8th store in Mumbai is a significant milestone in our retail expansion journey. Our strategy is focused on building a strong presence across both established and emerging markets, and Kalyan is an important addition to this network.
The city has a growing consumer base with evolving jewellery preferences, and we look forward to bringing our extensive range and contemporary retail experience closer to consumers in Kalyan and the surrounding areas, diversifying our clientele for conscious luxury and taking it a step further.”
With the launch of its new store in Kalyan, Limelight Lab Grown Diamonds now has 8 exclusive stores across Mumbai, further strengthening its retail network in one of India’s key jewellery markets. The launch is part of the brand’s wider nationwide expansion, as it continues to build awareness and accessibility for lab grown diamond jewellery across India.
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