A 12% share, and a new pecking order

The headline number from De Beers data released this week reorders the global diamond map. India is now the second-largest diamond jewellery market in the world, accounting for 12% of global demand, up from 10% in 2019. It trails only the United States, which holds a commanding 53% share. China and Japan, long fixtures in the top tier, have each fallen to 5%. The shift is not a rounding artifact. It reflects a sustained rise in Indian consumption against flat-to-declining demand in the two markets that defined diamond growth for the previous two decades.

The domestic figures behind the ranking are concrete. India's natural diamond jewellery market is valued near 49,700 crore rupees, and a De Beers report projects it crossing 1.5 lakh crore by 2030. The growth drivers are demographic. Gen Z buyers and self-purchase, rather than the traditional wedding-gift channel, are carrying the increase, a pattern that mirrors what happened in the United States a decade earlier and one that favors smaller, repeat, design-led purchases over single large solitaires.

The trade deal underneath the demand

Demand alone does not move a manufacturing economy. Trade access does. A newly concluded India-New Zealand free trade agreement grants zero-duty access that the Gem and Jewellery Export Promotion Council expects to lift gem and jewellery exports to that market from 16.6 million dollars today toward 50 million within three years, a target the council frames as roughly 200% growth. New Zealand is a small market in absolute terms, but the deal fits a broader GJEPC strategy of diversifying away from concentrated demand in the United States and the Gulf through bilateral access.

The export base gives the strategy weight. India's gem and jewellery exports reached 25.93 billion dollars across the April-to-February stretch of fiscal 2026, with the council pointing to gold jewellery and cut-and-polished diamonds as the growth engines. Surat, which processes the overwhelming majority of the world's diamonds by piece count, remains the physical hub through which any demand shift ultimately flows.

That diversification matters more than the New Zealand dollars themselves. India's exporters spent fiscal 2026 absorbing tariff uncertainty in the United States, their single largest market, and each incremental bilateral deal lowers the concentration risk that has made the export number so volatile month to month. A 50 million dollar target is small. The principle behind it is not.

Pricing still sets the ceiling

The demand story does not erase the pricing pressure that has defined the trade for two years. The RapNet Diamond Index fell 11.3% across 2025, and De Beers realized just 101 dollars a carat on rough in the first quarter of 2026, down 19% year over year. Those numbers are why Anglo American is pressing to sell the business, a process I track alongside the Richemont reshuffle in this week's industry report.

The lab-grown question now reads as a settled bifurcation rather than an open war. Synthetic stones have reached a production-cost floor near 100 to 150 dollars a carat for cutting and polishing, sell for roughly 73% less than a comparable natural diamond, and account for an estimated 45% of United States engagement-ring purchases. The natural stone, meanwhile, holds a 5 to 15 times premium at identical specifications. The two products have stopped competing for the same buyer, which is precisely the condition that lets a market like India build a durable natural-diamond franchise without lab-grown undercutting it on the same counter.

What the number means

For retailers and manufacturers, the India ranking is a planning input, not a press-release line. It tells the trade where incremental demand will come from as the United States matures and China stalls, and it argues for product, marketing, and inventory weighted toward a younger, self-purchasing, design-first buyer. The cross-asset context is in this week's trade wrap. The open question is whether India's counters can absorb enough polished to matter at the rough level, or whether a 12% demand share still leaves the producers waiting on a United States recovery that has not yet arrived.