Πρώην γνωστό ως "Κεϋλάνη", Sri Lanka is rich in gem resources and is one of the world's five largest gem producers. Είναι γνωστό ως το "Νησί των πολύτιμων λίθων". Ιστορικά, employees in Sri Lanka's gems and jade often accounted for 1/3 of the country's population. The country's gem resources are rich, ποικίλος, ευρέως κατανεμημένος, shallow [...]
