Observed arrival · 2026-10-30
CaratWatch’s monthly lab-grown diamond ledger
A public dashboard tracks lab-grown diamond prices, trade, and tariffs using government customs data.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
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- Lab-grown diamond trade professionals and market researchers
- Worth noticing
- India’s polished-diamond series pairs quarterly per-carat values with carats shipped; the U.S. import table also lists stone counts and duties paid.
Field notes
The India series groups monthly averages into quarters and reports open, high, low, and close prices alongside shipped carats. A separate U.S. import table includes monthly stone counts, import values, duties paid, and duty rates; its stated coverage begins in January 2022. The page attributes figures to government customs sources, including India’s Ministry of Commerce and the U.S. Census Bureau.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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