Gemstone Durability: Design to Display
Deborah Dupont Martin, June 1, 1987
A treatise on the design, display, care and repair of fine gemstones.
The Elahera Gem Field in Central Sri Lanka
Mahinda Gunawardene and Mahinda S. Rupasinghe, June 1, 1986
The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.