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Moissanite Princess Cuts from Japan

Lab-created silicon carbide moissanite cut in square princess style for diamond simulants in engagement rings, unset and jewelry-ready. Classifies under HTS 7104.99.10.00 as cut synthetic semiprecious stones.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Import Tips

• Thermal conductivity test certs distinguish moissanite from diamond

• Declare high refractive index (2.65) in specs for verification

• Single parcel per size/color to streamline customs processing