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HS Code for Cut Synthetic Diamonds for Jewelry
Author: Ivy Tse
Published:
Updated:

HS Code for Cut Synthetic Diamonds for Jewelry

TL;DR: **The HS code for cut synthetic diamonds for jewelry is 7104.21 in 2025.** This guide covers 2025 HS code changes, regional updates, classification steps, and shipping compliance for global trade.

What Is the HS Code for Cut Synthetic Diamonds?

**HS 7104.21 classifies cut synthetic diamonds for jewelry worldwide in 2025.** These lab-grown gems fall under Chapter 71 for precious stones.

  • 7104 covers synthetic or reconstructed precious stones
  • 7104.21 specifically for diamonds, worked but not mounted
  • Excludes rough synthetic diamonds (7104.90) and set gems (7116)
  • 6-digit base standardized by World Customs Organization (WCO)
  • National extensions add digits for tariffs

Use WCO HS nomenclature for verification.

HS 7104.21 Breakdown for Synthetic Diamonds 2025

**HS 7104.21 precisely identifies cut synthetic diamonds used in jewelry manufacturing.**

  • 7104: Synthetic precious stones, not mounted
  • 7104.2: Worked, graded, not strung/mounted
  • 7104.21: Diamonds specifically

Not for natural diamonds (7102) or industrial uses. Check lab certificates confirming synthetic origin.

2025 HS Code Changes Impacting Cut Synthetic Diamonds

**2025 HS code changes focus on regional extensions, not core 7104.21.** WCO maintains stability until 2027.

Region2025 ChangeImpact on HS 7104.21Code Example
USAHTS mandatory for USPS from Sep 110-digit requirement7104.21.0000
GCC Countries12-digit HS codes from Jan 1Extended subheadings7104.21.00.00
EUCombined Nomenclature updateTariff suspensions for lab gems7104 21 00
GlobalDe minimis adjustmentsUS threshold ends Aug 29 (>$800 full HS)Varies

Tariff compliance 2025 demands checking local customs.

How Cut Grades Affect HS 7104.21 Classification

**Cut grades like GIA Excellent influence 7104.21 subcodes and tariffs in 2025.** Lab-grown diamonds simplify grading.

  1. Excellent: Highest light performance, premium tariffs
  2. Very Good: Strong scintillation
  3. Good: Balanced proportions
  4. Fair/Poor: May qualify lower duties
  5. Declare grade on commercial invoice

Include GIA or IGI reports for customs clearance.

Step-by-Step: Classify Cut Synthetic Diamonds HS Code

**Classify HS code for cut synthetic diamonds in 5 simple steps for 2025 compliance.**

  1. Verify synthetic origin: Lab certificate required (CVD, HPHT)
  2. Confirm cut status: Polished/faceted, not rough
  3. Apply base HS 7104.21: Global standard for jewelry diamonds
  4. Add regional digits: US HTS, GCC 12-digit, EU CN
  5. Validate and document: Use WCO tools, note weight/carat/grade

This how-to ensures accurate tariff compliance 2025.

Regional HS Codes for Synthetic Diamonds Jewelry 2025

**Regional variations extend HS 7104.21 for cut synthetic diamonds in 2025.**

  • USA: 7104.21.0000 (HTS Chapter 71)
  • GCC: 7104.21.XX.XX (12-digit from Jan 2025)
  • EU: 7104 21 00 (CN 2025, potential suspensions)
  • China: 7104.21.0000 (8-digit)
  • Australia: 7104.21.00 (10-digit)

Always confirm via official customs portals.

Shipping Cut Synthetic Diamonds: HS Compliance Tips

**Proper HS 7104.21 declaration prevents delays when shipping synthetic diamonds for jewelry.**

  • Declare accurate HS 7104.21 on commercial invoice, packing list, airway bill
  • Use tamper-evident, secure packaging
  • Obtain full value insurance coverage
  • Include origin certificates and gem lab reports
  • Enable real-time tracking for high-value shipments

2025 de minimis changes require full declarations over thresholds.

FAQ: HS Code for Cut Synthetic Diamonds for Jewelry

Common questions on HS 7104.21 classification 2025.

What is the HS code for cut synthetic diamonds for jewelry? HS 7104.21 worldwide.

Is HS 7104.21 unchanged in 2025? Core code stable; regional extensions apply.

How do GCC 12-digit HS codes affect synthetic diamonds? Extends 7104.21 from Jan 1, 2025.

What's the difference between synthetic and natural diamond HS codes? Synthetic: 7104.21; natural: 7102.21.

Do cut grades impact HS 7104.21 tariffs? Yes, Excellent/Very Good may trigger subcodes.

What US changes affect HS diamonds 2025? HTS mandatory Sep 1; de minimis ends Aug 29.

Which documents prove synthetic diamond origin? Lab certificates from GIA/IGI confirming CVD/HPHT.

Does EU 2025 CN change synthetic diamond HS codes? Minimal; focuses tariff suspensions.

How to avoid penalties with HS 7104.21? Precise declaration prevents fines up to 100% value.

Are mounted synthetic diamonds still HS 7104.21? No, becomes 7116 when set in jewelry.

Resources for HS Code Compliance

2025 case study: Jewelry exporter avoided $25K penalties using correct HS 7104.21 + GCC 12-digit codes.

For tariff compliance assistance, Book a Demo.

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