Rapaport: U.S. tariffs are to blame for rise in polished diamond prices in April


05/08/2025

The price index for polished diamonds weighing 1 carat increased by 0.7 percent in April, according to Rapaport, the organization that computes the industry benchmark known as the RapNet Diamond Index (RAPI).



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In February, the downward trend in prices switched, as the index increased for the first time in several months due to decreasing inventories.

Nevertheless, the index is still 20 percent lower than it was a year ago and 0.1 percent beneath the early 2025 figure.

The index for polished diamonds weighing 0.3 carats kept gaining strength, increasing by 2.8 percent in April and 13.2 percent year-to-date. The RAPI for 0.5-carat diamonds increased by 0.6% in April and by 2.5% year-to-date. Only sizable diamonds - 3 carats large - experienced a minor decline of 0.3% in April.

According to Rapaport, diamond prices surged significantly in early April due to news of new U.S. import tariffs, but then leveled off when the U.S. delayed the implementation of tariffs for 90 days.

Rapaport stated that the rise in price accounts for some of the anticipated tariff expenses. The diamond market has decelerated beyond the U.S. but continues to be steady domestically. Stocks started to increase as American traders bought goods ahead of the expected tariff implementation date, and international trading hubs—particularly Indian exporters—had the opportunity to send desired products to the U.S.

"The sector functioned amid extraordinary uncertainty caused by the ongoing tariff discussions between the U.S. and India, the top diamond consuming and producing nations in the world," stated the press release.

source: marketwatch.com