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Home Gems & Jewellery NewsDiamond Trends Shift at JCK Las Vegas Amid Tariff Woes and Synthetic Threats

Diamond Trends Shift at JCK Las Vegas Amid Tariff Woes and Synthetic Threats

by Nikhil Prasad

Key points

  • With a shrinking supply pipeline and limited new mines, he predicted that prices for natural diamonds could stabilize or rise in the medium to long term.
  • He stressed the need for transparency in the sourcing of natural stones and positioned traceability as a core value moving forward.
  • JCK Las Vegas 2025, held from June 6–9 at the Venetian Expo, once again cemented its place as a global barometer for the gems and jewellery trade.

Gems and Jewellery News: Market Momentum Splits at Premier US Jewellery Show

JCK Las Vegas 2025, held from June 6–9 at the Venetian Expo, once again cemented its place as a global barometer for the gems and jewellery trade. Yet beneath the glittering showcases and bustling booths, this year’s show revealed a market increasingly fractured between high-end successes and bread-and-butter struggles.

Diamond

Emerald cut diamonds were a big hit at the recent JCK Las Vegas show
Image Credit: Diamond Express

On the surface, the turnout was strong and the energy high, with buyers eager to explore new designs and refill inventory. But this Gems and Jewellery News report found that deeper conversations among exhibitors and buyers consistently circled back to concerns over U.S. tariffs, the disruptive rise of synthetic diamonds, and shifts in consumer spending.

Winners in a Divided Diamond Market

Exhibitors with the right products—particularly large, fancy-shaped diamonds—reported solid sales and strong interest. Ovals, emerald cuts, and long cushions in the 2-carat-and-above range stood out as star performers. Similarly, large round diamonds remained in demand thanks to global supply shortages and steady interest from high-net-worth buyers seeking luxury, rare, or vintage-inspired pieces.

This premium segment appears to be somewhat shielded from the broader turbulence, with discerning clients still willing to invest in high-value natural stones, often custom-made or tied to heritage craftsmanship. Indian artisans also made a powerful impression, especially through the India Design Gallery, which was widely shared by influencers and international media. Their work in filigree, enamelling, and granulation continues to win admiration and sales from a global audience.

Tariffs Weigh Down Bread and Butter Goods

While the luxury sector thrived, more accessible diamond categories—especially loose stones under 1.20 carats—struggled. Many exhibitors blamed a combination of U.S. import tariffs and the flooding of the market by cheaper lab-grown alternatives for the sluggish demand. Retailers, still unsure about policy changes, were cautious in purchasing, particularly when it came to standard inventory items that previously moved with ease.

Suppliers from regions like India and Belgium noted a “mixed bag” in terms of demand. While some fared well, others experienced a drop in inquiries and sales. Indian dealers, however, found success marketing premium fancy shapes, even as their local market remained relatively subdued. Belgian exhibitors focused on large natural stones but noted a reduced presence of fellow vendors this year.

Rapaport and Industry Voices Highlight Future Uncertainty and Hope

The much-anticipated Rapaport Breakfast, drawing over 1,000 attendees, offered deeper insight into the challenges and evolving dynamics of the trade. Martin Rapaport, in his keynote, warned of potential backlash from consumers if retailers continued pushing synthetic diamonds at inflated prices. He stressed the need for transparency in the sourcing of natural stones and positioned traceability as a core value moving forward.

De Beers CEO Al Cook echoed this cautious optimism. With a shrinking supply pipeline and limited new mines, he predicted that prices for natural diamonds could stabilize or rise in the medium to long term. His company also plans new campaigns to reenergize the narrative around natural stones, hoping to rekindle interest among younger buyers.

Spotlight on Ethics, Sustainability, and Young Designers

Outside the trading floor, several events addressed the future of jewellery. The Natural Diamond Council hosted networking gatherings attended by senior figures from Botswana’s mining industry. Kering celebrated young, forward-thinking designers with awards for creations using recycled materials. And CIBJO’s discussions on terminology and ethical marketing sparked interest, especially with growing calls for better consumer education.

Meanwhile, Iris Van Der Veken of WJI 2030 joined a panel on sustainability in the watch and jewellery sectors. Participants highlighted the urgency of aligning industry efforts with the Sustainable Development Goals, emphasizing that while progress is visible, much more needs to be done—quickly.

An Industry at a Crossroads but Still Sparkling with Possibilities

Despite current market tensions and uneven performance across categories, the spirit of innovation and resilience remained a key theme throughout JCK Las Vegas 2025. From artisanal Indian showcases and ethical gemstone initiatives to the comeback of large natural stones, the global gems and jewellery industry is clearly in a period of recalibration.

Yet optimism endures. As ageing baby boomers prepare to pass on substantial inheritances, there is a growing belief that demand for heirloom-quality and vintage diamond jewellery may see a renaissance. And with traceability and sustainability becoming central pillars, the industry has a chance to reimagine itself for a younger, more conscious clientele.

With all eyes on how tariffs evolve and whether synthetics gain or lose traction in coming months, one thing is clear—the balance of tradition, trust, and transparency will determine who leads the next chapter of the global diamond trade.

For the latest Gems and Jewellery market trends, keep on logging to Bangkok Gems News.

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