Product classification
HS code for Cut synthetic gemstones: 7104.99
Stones, synthetic or reconstructed precious or semi-precious n.e.c. in heading 7104, worked or graded but not strung, mounted or set, ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport.
Classification of cut synthetic gemstones under HS 7104.99
Synthetic gemstones that have been cut and polished are classified under HS code 7104.99. Heading 7104 is dedicated to synthetic or reconstructed precious or semi-precious stones. These are materials that have the same chemical composition and crystal structure as natural stones but are produced through industrial processes like the Verneuil process, Czochralski process, or hydrothermal growth. The subheading 7104.99 is a residual category for worked synthetic stones other than synthetic diamonds. \"Worked\" implies that the synthetic material has been shaped into gemstones through faceting, polishing, or carving. This classification is essential for distinguishing man-made materials from their natural counterparts, which are found in heading 7103. It is important to note that reconstructed stones—made by fusing fragments of natural stones into a single mass—are also included here. Like natural stones, these must not be mounted or set to qualify for this specific code. If they are set, they move to heading 7117 for imitation jewelry or 7113 if set in precious metal. The classification also covers ungraded synthetic stones that are temporarily strung for transport. This code ensures that the market for synthetic stones is tracked separately from the natural gemstone market, which is vital for consumer protection and industry standards.
- Covers
- Cut synthetic cubic zirconia
- Faceted synthetic moissanite
- Lab-grown cut rubies and sapphires
- Worked reconstructed turquoise
- Polished synthetic emeralds
- Also under 7104.99
- Swarovski Zirconia
- Pandora (for some synthetic stones in their jewelry)
- various costume jewelry manufacturers
- Charles & Colvard (for finished moissanite)
Codes often confused with 7104.99
Common mistake. The most common error is classifying synthetic stones under 7103.99 (natural stones). Another error involves synthetic diamonds, which have their own specific code at 7104.91. If the synthetic stones are used in cheap jewelry and are not of gemstone quality, they might be confused with glass stones in 7018.
Top exporters and importers of HS 710499 (the code used for cut synthetic gemstones), 2025
In 2025, the largest exporter of HS 710499 (the code used for cut synthetic gemstones) in UN Comtrade data was China, with 40% of world exports; the largest importer in UN Comtrade data was Thailand, with 19% of world imports. The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 94% of its imports here ($32M, CEPII BACI), so it may also belong among the top importers.
Figures cover everything classified under HS 710499, not only cut synthetic gemstones.
Top exporters 2025 · share of world exports
- 1 China $163M 40% of world exports
- 2 Thailand $54M 13% of world exports
- 3 Hong Kong $37M 9.1% of world exports
World total: $406M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Thailand $62M 19% of world imports
- 2 China $35M 11% of world imports
- 3 Vietnam* ~$27M 8.2% of world imports · partner records ↗
The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 94% of its imports here ($32M, CEPII BACI), so it may also belong among the top importers.
World total: $324M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for cut synthetic gemstones
Brazil classifies cut synthetic gemstones under NCM 7104.99.00: HS 7104.99 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about cut synthetic gemstones
What is the HS code for Cut synthetic gemstones?
The HS code for Cut synthetic gemstones is 710499 (Stones; synthetic or reconstructed precious or semi-precious n.e.c. in heading 7104, worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport). The HS code for worked synthetic or reconstructed precious or semi-precious stones (excluding diamonds) is 7104.99.
How do I classify Cut synthetic gemstones for customs?
Cut synthetic gemstones is classified under HS code 710499 — Stones; synthetic or reconstructed precious or semi-precious n.e.c. in heading 7104, worked or graded but not strung, mounted or set; ungraded synthetic or reconstructed precious or semi-precious stones, temporarily strung for convenience of transport. This is a 6-digit subheading level code.
Are lab-grown diamonds included in 7104.99?
No, lab-grown diamonds are specifically classified under HS code 7104.91 if they are worked but not set.
Which countries are the top exporters of cut synthetic gemstones (HS 710499)?
In 2025, the top exporters of HS 710499 (the code used for cut synthetic gemstones) in UN Comtrade data were China ($163M, 40% of world exports), Thailand ($54M) and Hong Kong ($37M). World exports came to about $406M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of cut synthetic gemstones (HS 710499)?
In 2025, the top importers of HS 710499 (the code used for cut synthetic gemstones) in UN Comtrade data were Thailand ($62M, 19% of world imports), China ($35M) and Vietnam (about $27M). World imports came to about $324M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). The United Arab Emirates did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 94% of its imports here ($32M, CEPII BACI), so it may also belong among the top importers.
Is the HS code for Cut synthetic gemstones the same in all countries?
The base HS code 710499 for Cut synthetic gemstones is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for cut synthetic gemstones in Brazil?
In Brazil, cut synthetic gemstones (HS 710499) is classified under NCM 7104.99.00.