Demantoid Disclosure – The ins and outs of laboratory reporting of treatment and locality.
The Internal World of Gemstones – A pictorial guide to a microscopic world that lets us further appreciate gemstones’ external beauty.
Kunzite the Precious – A reprint from Sunset magazine, by William R. Gross, October 1905.
On Kunz and Kunzite – An excellent historical look at the discovery and naming of kunzite, by Lawrence Conklin.
Painite Comes to Pala – Pala International President Bill Larson recounts a thirty-year quest for a mysterious stone, finally concluding, “no painite, no gainite.”
Paraiba at Pala – Pala brings you up to date regarding the “name game” for copper-bearing tourmaline. Fully illustrated.
Passion Fruit: A Lover’s Guide to Sapphire – Pala’s resident ruby and sapphire expert discusses sapphire connoisseurship. By Richard W. Hughes.
Seeing Red: A Guide to Ruby – Richard Hughes examines the elements of quality in ruby. Fully illustrated.
Spessartite (Spessartine) Buying Guide by Richard W. Hughes
Walking the Line in Ruby & Sapphire – A connoisseur’s search for meaning with padparadscha and pink sapphire. By Richard Hughes. Fully illustrated. This article includes a Buyer’s Guide to Padparadscha by Richard Hughes.