The diamond jewelry industry entered 2026 with a cautious and disciplined outlook. Market behavior at the end of 2025 carried forward into the new year, reflecting selective demand, sharp pricing differences by stone size, and rising pressure from lab-grown alternatives. Alongside these market dynamics, strategic decisions by major industry players are reshaping how diamond jewelry is positioned, valued, and marketed.
Market Conditions Shaping Diamond Jewelry Demand
Toward the end of 2025, diamond market trends intensified, particularly in polished diamonds. Prices for diamonds above 1 carat showed relative stability, while smaller diamonds experienced sharp declines. These dynamics remained unchanged as the industry moved into 2026, indicating persistent structural pressures rather than short-term fluctuations.
In the United States, dealers reported a generally positive seasonal performance, although purchasing behavior remained cautious. Retailers focused on careful inventory management and relied heavily on last-minute orders instead of advance stocking. Demand concentrated on diamonds weighing 1.20 carats and above, with long fancy shapes receiving particular attention, reinforcing the preference for higher-value diamond jewelry.
Pricing Performance and the Growing Size Divide
Pricing data highlighted a clear split between large and small diamonds. In December, the price index for 1-carat diamonds declined 2.3%, while 0.30-carat diamonds dropped 9.3% and 0.50-carat diamonds fell 6.4%. In contrast, 3-carat diamonds recorded a modest increase of 0.3%, reflecting stronger demand at the higher end of the market.
This divergence defined the broader performance of 2025. Over the full year, prices for 1-carat diamonds declined 9.9%, while smaller diamonds saw significantly steeper drops. Prices for 0.30-carat diamonds fell 20.3%, and 0.50-carat diamonds declined 26%. At the same time, diamonds weighing between 7 and 15 carats ended the year with strong demand, underscoring the resilience of premium diamond jewelry segments.
Pressure from Synthetics on Natural Diamond Jewelry
Competition from lab-grown diamonds continued to weigh heavily on smaller natural diamonds, particularly in lower clarity categories. Prices for round, 1-carat diamonds with SI clarity declined 24.1% during 2025, while smaller diamonds experienced even sharper price corrections. These declines accelerated in the second half of the year as tariffs and shifts in retailer sourcing strategies reduced demand for certain natural diamond categories.
Lab-grown diamonds also continued gaining share in fashion jewelry, adding to industry nervousness. This growing presence reinforced the importance of differentiation within diamond jewelry, especially as price-sensitive segments increasingly gravitated toward lower-cost alternatives.
Regional Challenges and Ongoing Uncertainty
Export activity slowed in India due to United States tariffs, while domestic demand weakened after previously being one of the strongest markets. China’s demand for diamonds remained subdued. At the same time, the industry continued to monitor unresolved issues, including potential trade agreements, high gold prices, sanctions affecting supply chains, and broader geopolitical uncertainty.
Despite these pressures, existing trends showed continuity rather than abrupt change. Long fancy shapes continued to outperform rounds, and diamonds weighing 1.20 carats and above gained popularity, indicating a steady shift toward fewer but higher-value purchases in diamond jewelry.
Closure of a Lab-Grown Jewelry Business and Its Significance
In 2025, a major industry player announced its intention to close its lab-grown diamond jewelry brand, reinforcing a strategic commitment to natural diamonds within the jewelry sector. The closure process includes discussions around selling certain assets, such as inventory, while continuing customer support through warranties and after-sales services.
The lab-grown jewelry brand was originally launched in 2018 to clearly distinguish lab-grown diamonds from natural diamonds through transparent linear pricing of $800 per carat. Since then, wholesale prices for lab-grown diamonds in the jewelry sector have declined by 90%, increasingly following a cost-plus pricing model rather than aligning with natural diamond pricing. This sustained decline played a central role in the decision to discontinue the business.
Renewed Focus on Natural Diamond Jewelry
The exit from lab-grown jewelry retail reflects a belief that natural diamond jewelry represents a rare, high-value category that is fundamentally distinct from mass-produced lab-grown alternatives. The decision aligns with a broader strategy announced in 2024 to streamline operations, focus on high-return activities, and strengthen long-term positioning.
By reallocating investment away from lab-grown jewelry, the company aims to reinvigorate consumer desire for natural diamonds through category marketing. Persistently declining lab-grown diamond prices, increasing low-cost production, and aggressive retail discounting have further widened the value gap between natural and lab-grown diamond jewelry, reinforcing the strategic rationale behind this move.
Next Steps for the Diamond Jewelry Industry
As the market moves through 2026, diamond jewelry businesses are likely to benefit from disciplined inventory strategies, sharper category differentiation, and a stronger emphasis on natural diamond value. Aligning product offerings with higher-carat demand, monitoring pricing trends closely, and responding proactively to synthetic competition will remain critical. In a market defined by caution rather than contraction, clarity of positioning and long-term focus are emerging as key drivers of resilience.
About the author:
Joydeep Dey is a seasoned SEO Executive, Content Writer, and AI expert with over 2½ years of experience in digital marketing and artificial intelligence. He specializes in SEO strategy, impactful content creation, and developing data-driven, AI-powered solutions that enhance online visibility and engagement. With a strong foundation in natural language processing and emerging AI technologies, Joydeep is known for simplifying complex concepts into clear, actionable insights. He can be reached at info@nextmsc.com.
