An Examination of Four Important Gems
Several famous and historical gemstones in the Smithsonian's collection are examined and reported on.
Gemstone Carving in China: Winds of Change
Chinese master carvers have produced some of the world's most sophisticated gemstone carvings.
The Pearl in the Chicken: Pearl Recipes in Papyrus Holmiensis
Several pearl-in-chicken cleaning experiments are carried out to test the validity of recipes from an ancient Egyptian source.
Padparadscha: What's in a Name?
An examination of the term used to describe a sapphire the color of a lotus blossom.
Jade Forms from Ancient China
This article briefly examines some of the symbols used in jade carved in China.
Lapis-Lazuli from Sar-E-Sang, Badakhshan, Afghanistan
apis-lazuli is an ornamental stone (figure 1) that has been found in the artifacts of some of the oldest known civilizations.
Harry Winston: A Story Told in Diamonds
An overview of some of the most fabulous and famous diamonds that Harry Winston has known.
An Important Exhibition of Seven Rare Gem Diamonds
The stories behind seven strikingly beautiful rare natural diamonds, united in an exhibit at the Smithsonian, are told here.
Star of the South: A Historic 128 Ct Diamond
This article presents the first complete gemological characterization of the historic 128.48 ct Brazilian diamond known as the Star of the South.
Fingerprinting of Two Diamonds Cut from the Same Rough
With the information from a combination of tools now available, the sophisticated gemologist can fingerprint a given stone.