Diamond exports, USD per carat - Country rankings:
The average for 2017 was 192.46 USD per carat.The highest value was in the USA: 586.18 USD per carat and the lowest value was in Democratic Republic of the Congo: 12.04 USD per carat. Below is a chart for all countries where data are available for: Diamond exports, USD per carat.
Diamond exports, USD per carat, 2017
(USD per carat, Source: The Kimberley Process, TheGlobalEconomy.com)