Product classification
HS code for Polished synthetic stones: 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 polished synthetic stones under HS 7104.99
Polished synthetic stones are classified under HS code 7104.99. This heading covers synthetic or reconstructed precious or semi-precious stones that have been "worked," meaning they have undergone processes such as cutting, faceting, or polishing. Synthetic stones are chemically and physically identical to their natural counterparts but are produced in a laboratory setting. Reconstructed stones are made by binding fragments of natural stones into a single mass. The subcode 7104.99 is a residual category for worked stones that are not specifically mentioned in other subheadings (like synthetic diamonds). The classification depends entirely on the stone being unmounted; once a polished synthetic stone is set into a ring, earring, or other jewelry mounting, it must be classified under heading 7113 as jewelry.
- Covers
- Polished lab-grown rubies
- Faceted synthetic sapphires
- Worked cubic zirconia (CZ)
- Polished reconstructed turquoise
- Synthetic emeralds, cut and polished
- 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 misclassification occurs with HS code 7103, which is strictly for natural precious or semi-precious stones. Importers must distinguish between "natural" and "synthetic" origins. Another error involves HS code 7117, which covers imitation jewelry; however, 7117 is for items made of base metal or plastics, whereas 7104.99 is for the stones themselves. Finally, unworked or roughly sawn synthetic stones should be classified under 7104.10 or 7104.20 depending on the material.
Top exporters and importers of HS 710499 (the code used for polished synthetic stones), 2025
In 2025, the largest exporter of HS 710499 (the code used for polished synthetic stones) 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 polished synthetic stones.
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 polished synthetic stones
Brazil classifies polished synthetic stones 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 polished synthetic stones
What is the HS code for Polished synthetic stones?
The HS code for Polished synthetic stones 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 primary HS code for worked (polished or faceted) synthetic stones, excluding diamonds, is 7104.99.
How do I classify Polished synthetic stones for customs?
Polished synthetic stones 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 classified here?
No, lab-grown diamonds have their own specific subheadings, such as 7104.21 for unworked and 7104.91 for worked diamonds.
Which countries are the top exporters of polished synthetic stones (HS 710499)?
In 2025, the top exporters of HS 710499 (the code used for polished synthetic stones) 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 polished synthetic stones (HS 710499)?
In 2025, the top importers of HS 710499 (the code used for polished synthetic stones) 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 Polished synthetic stones the same in all countries?
The base HS code 710499 for Polished synthetic stones 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 polished synthetic stones in Brazil?
In Brazil, polished synthetic stones (HS 710499) is classified under NCM 7104.99.00.