</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

HPHT Synthetic Diamond Melee Parcels from Mexico

Small synthetic diamonds (melee size <0.1 carat) produced via High-Pressure High-Temperature method, roughly shaped into pyramidal or octahedral forms. HTS 7104.21.00.00 covers these unworked/slightly sawn synthetic diamonds not intended for jewelry setting yet.

Duty Rate — Mexico → United States

13%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Provide HPHT growth certificates; melee parcels often scrutinized for natural mixing

Weigh parcels precisely; declare temporary stringing if used for transport convenience only