Is a jewelry store liable for the loss after fixing a diamond ring when it breaks again and the diamond is lost?

Jewelry Store ResponsibilityA Jewelry Store could be held liable inly if the subsequent loss of the stone could be reasonably established to be the result of workmanship performed by the Jeweler.

No, if the Stone was lost due to subsequent damage not affected by the workmanship provided by the jewelry store.

If the Repair facility is responsible, then this type of loss would be covered under the Products and Operations Completed portion of a Commercial or Business General Liability Insurance Policy. Where a Specified Coverage form does not otherwise exist, coverage may yet be afforded if a Commercial Umbrella Policy is in force.