The Diamonds Determination prohibits the importation and entry into the United States of two categories of diamonds, effective on the dates indicated below.
Effective March 1, 2024, the Diamonds Determination prohibits the importation of non-industrial diamonds that were mined, extracted, produced, or manufactured wholly or in part in the Russian Federation with a weight of 1.0 carat or greater, even if such diamonds have been substantially transformed into other products outside of the Russian Federation.
Effective September 1, 2024, the Diamonds Determination prohibits the importation of Russian non-industrial diamonds with a weight of 0.5 carats or greater, even if such diamonds have been substantially transformed into other products outside of the Russian Federation.
For example, a non-industrial diamond that is mined in Russia but then undergoes manufacturing operations such as being cut, faceted, or polished in a third country, is prohibited from importation and entry into the United States, if at the time of importation, it is 1.0 carat or greater as of March 1, 2024 or 0.5 carats or greater as of September 1, 2024.
See FAQ 1027 for the definition of non-industrial diamonds. See FAQ 1166 for information on the prohibition related to diamond jewelry and unsorted diamonds.