Top Gems Importers 2015 Listed are the top 10 gems importers based on their percentage of global import purchases (shown within parenthesis). Internationally imported gems cost a total US$124.6 billion in 2015, including diamonds & unworked or synthetic precious stones.

Fastest-Growing Gem Import Countries To see the 25 fastest-growing gems importers from 2011 to 2015, use the slidebar on the accompanying list. Overall, the 5-year percentage decline for globally imported gems was -24.9%.

Research Note:  Import numbers rarely match the source exporters’ stats. Reasons for import-export statistical discrepancies include re-exports, time lags, misallocations, distinct trade reporting systems, different quantity measurements and country confidentiality rules. Also, transportation and insurance costs are sometimes added to import totals.