Ilgari sifatida tanilgan "Seylon", Sri Lanka is rich in gem resources and is one of the world's five largest gem producers. Bu sifatida tanilgan "Qimmatbaho toshlar oroli". Tarixan, 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, rang-barang, keng tarqalgan, sayoz [...]
