India’s lab-grown diamond market is moving rapidly from a niche concept to a mainstream jewellery choice, driven by rising demand for affordable, sustainable, and ethically sourced alternatives. Titan Company’s entry with its beYon brand marks a major inflection point, signalling strong confidence from an industry leader. As lab-grown diamonds gain traction among younger, urban consumers, investors are increasingly tracking listed companies positioned to benefit from this shift.
Understanding net profit margin is crucial for lab-grown diamond stocks because pricing pressure, high energy costs, and rapid capacity additions can quickly erode profitability. Strong margins signal cost efficiency and pricing power.
The table highlights a sharp contrast: IGI and Goldiam enjoy superior margins with low leverage, while jewellery retailers like Titan and Senco operate on thinner margins despite strong brands and scale.
| Stock Name | Net Profit Margin (%) | Debt to Equity Ratio | PB Ratio |
| International Gemmological Institute (India) Ltd | 39.26 | 0.14 | 13.54 |
| Goldiam International Ltd | 14.62 | 0.04 | 5.50 |
| Trent Ltd | 8.87 | 0.40 | 27.36 |
| Titan Company Ltd | 5.48 | 1.79 | 30.90 |
| Senco Gold Ltd | 2.50 | 1.05 | 2.64 |
| Dev Labtech Venture Ltd | 2.46 | 0.03 | 2.28 |
IGI benefits from the rapid adoption of lab-grown diamonds as a trusted, independent certification provider. With nearly 60% of its revenue coming from LGD certification and strong volume growth, the company is positioned to gain from rising consumer acceptance and industry formalisation, especially as India becomes a global hub for lab-grown diamonds.
Goldiam International offers exposure to lab-grown diamonds through an export-focused, manufacturing-led model. Its presence across design, manufacturing, and retail partnerships allows it to adapt to changing consumer preferences. Low leverage and improving margins make Goldiam relatively well placed to navigate pricing pressures in the evolving lab-grown diamond ecosystem.
Trent’s entry into lab-grown diamonds through the Pome brand leverages its strong retail network and youth-focused fashion positioning. By selling lab-grown diamonds as lifestyle accessories rather than fine jewellery, Trent targets younger consumers. Its scale, brand execution, and omni-channel reach support gradual value creation without heavy balance-sheet risk.
Titan’s foray into lab-grown diamonds with the beYon brand adds a new growth lever without diluting its premium natural diamond positioning. Backed by Tata Group credibility and an extensive retail footprint, Titan can scale the segment efficiently. Its approach treats lab-grown diamonds as fashion jewellery, aligning well with evolving consumer preferences.
Senco Gold’s lab-grown diamond presence under the Sennes luxury brand complements its established jewellery retail business. With dedicated stores and phased expansion plans, Senco aims to capture demand while leveraging its existing customer base. The strategy offers optional growth, though profitability will depend on execution and inventory discipline.
Dev Labtech Venture provides direct exposure to lab-grown diamond manufacturing using MPCVD technology. Its investments in capacity expansion and applications beyond jewellery, such as industrial and semiconductor uses, diversify revenue potential. While still small in scale, the company offers a pure-play manufacturing angle within a growing but competitive segment.
| Stock Name | Market Cap (₹ Cr) | 5Y CAGR (%) | Inventory Turnover Ratio |
| Goldiam International Ltd | 4,096.66 | 51.27 | 2.13 |
| Trent Ltd | 152,767.18 | 44.82 | 5.78 |
| Titan Company Ltd | 359,191.24 | 21.04 | 2.34 |
Read more: Best Gold ETFs in India for January 2026: SBI Gold ETF, HDFC Gold ETF, ICICI Prudential and More.
Lab-grown diamonds are reshaping the Indian jewellery landscape by offering lower prices, faster production, and a cleaner environmental footprint compared to natural diamonds. With India expected to be one of the fastest-growing markets globally, listed players with scale, technology, certification strength, and retail reach are well placed to benefit.
Disclaimer: This blog has been written exclusively for educational purposes. The securities mentioned are only examples and not recommendations. This does not constitute a personal recommendation/investment advice. It does not aim to influence any individual or entity to make investment decisions. Recipients should conduct their own research and assessments to form an independent opinion about investment decisions.
Investments in the securities market are subject to market risks. Read all the related documents carefully before investing.
Published on: Jan 4, 2026, 9:30 AM IST
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