HS Code for Cut diamonds
HS code 7104.91 applies to synthetic or reconstructed diamonds that have been worked—meaning they have been cut, faceted, or polished—but are not yet mounted or set into jewelry. Chapter 71 covers natural and cultured pearls, precious stones, and precious metals. Heading 7104 is specifically dedicated to synthetic or reconstructed precious or semi-precious stones. These are stones that have been produced in a laboratory but possess essentially the same chemical, physical, and optical properties as their natural counterparts. The subheading 7104.91 distinguishes diamonds from other synthetic stones (like rubies or sapphires). The "worked" status is a critical classifier; "unworked" synthetic diamonds would fall under 7104.21. This code ensures that lab-grown diamonds used in the gemstone trade are tracked separately from natural diamonds (7102) and from industrial-grade synthetics. The classification remains 7104.91 even if the stones are temporarily strung for transport, provided they are not yet set in metal.
Products Included
- Lab-grown faceted diamonds
- Polished synthetic diamonds
- Cut synthetic diamond gemstones
- Graded lab-grown diamonds (unmounted)
- Reconstructed diamond stones, worked
Common Misclassification
The primary misclassification is with 7102.39, which is for natural worked diamonds. Because lab-grown diamonds are chemically identical, they are often misdeclared under the natural diamond code, which has different regulatory requirements. Another error is 7104.21, which is for unworked or simply sawn synthetic diamonds. If the stone has been faceted, it must move to 7104.91. Furthermore, if the diamond is mounted in a ring or earring, it is no longer a "stone" for classification purposes and must be classified as jewelry under 7113.19. Finally, industrial synthetic diamonds are classified under 7104.91 only if they are of gemstone quality; industrial-grade grit or powder falls under 7105.10.
FAQ
What is the HS code for cut synthetic diamonds?
The HS code for worked (cut or polished) synthetic diamonds is 7104.91.
How are lab-grown diamonds distinguished from natural ones in the HS?
Natural diamonds are classified under heading 7102, while lab-grown (synthetic) diamonds are classified under heading 7104.
Alternative HS Codes
Industry
Frequently Asked Questions
What is the HS code for Cut diamonds?
The HS code for Cut diamonds is 710491 (Stones; diamonds, 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).
How do I classify Cut diamonds for customs?
Cut diamonds is classified under HS code 710491 — Stones; diamonds, 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.
Is the HS code for Cut diamonds the same in all countries?
The base HS code 710491 for Cut diamonds is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.