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Polished lab-grown diamond wholesale prices are stabilizing near the production cost floor — slipping only about 2.6% year-on-year after the double-digit collapses of 2022–2024. With rough imports at major cutting centers such as Surat averaging roughly $15 per carat, and Indian lab-grown export volumes now exceeding natural diamond exports, the industry's margin battle has shifted decisively from carat volume to energy efficiency. Analysts expect only 5–10% further downside over the next 12–18 months.
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New industry forecasts value the moissanite market at $1.8B in 2026, expanding at an 8.7% CAGR. Premium DEF-grade certified stones are consolidating the top of the market while commodity-grade goods face margin compression — and certification capacity is becoming the bottleneck.
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Chemical Vapor Deposition grows diamond layer by layer in plasma; High-Pressure High-Temperature recreates the earth's mantle. One offers unmatched color consistency, the other raw volume — and the gap is reshaping global supply chains.
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Ethics first, sparkle close behind: surveys show a majority of younger buyers prefer documented lab-created stones, and the average center-stone size has grown from 1.31 to 2.45 carats since 2019 as savings are reinvested into bigger gems.
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Regulators are tightening lab-created origin disclosure across major markets. Sellers relying on ambiguous terminology face margin pressure, while brands that pair every stone with independent certification are winning consumer trust — and conversion.
Read InsightA new generation of photoluminescence spectrometers is rolling out across the GRA network, cutting certification turnaround times and hardening anti-fraud checks through automated girdle-inscription matching.
Read InsightReport number, shape, measurements, weight, the three grading results and proportion data — a field-by-field walkthrough of your gemstone dossier, and how each value should match the stone in your hand.
Read InsightExcerpts condensed from public industry reports · Click any card to read the full article