Jewelers Mutual has filed for an overall 8.37% rate increase on its commercial property program in Idaho, targeting jewelry manufacturing risks that the insurer says have shown worse loss experience. The filing was submitted on January 5, 2026, with a requested effective date of April 1, 2026 for both new and renewal business.

The program impacts 17 policyholders in Idaho and represents $72,695 in written premium, with a proposed premium increase of $6,085. As part of the change, Jewelers Mutual is reassigning Property Rate Numbers specifically for jewelry manufacturing, which it now classifies as a higher-risk segment.

The insurer notes that incurred losses for Business Income and Extra Expense coverage have nearly doubled in recent years, now accounting for about 43% of total building and personal property losses, a key driver behind the increase.

Catastrophe exposure in the filing is modeled using RMS (v17) and AIR Worldwide. Jewelers Mutual states it does not use telematics or machine learning or AI for this filing.

The proposed increase follows a 0.34% rate decrease that became effective April 1, 2025.