Purplish Pink Spinel from Tajikistan: Before and After Cutting
Read MoreThis article describes what is known about the Wittelsbach Blue since it was first reported in 1666, and the gemmological information released to date on this diamond.
Read MoreThe stories behind seven strikingly beautiful rare natural diamonds, united in an exhibit at the Smithsonian, are told here.
Read MoreThis article presents the first complete gemmological characterisation of the historic 128.48 ct Brazilian diamond known as the Star of the South.
Read MoreWith the information from a combination of tools now available, the sophisticated gemmologist can fingerprint a given stone.
Read MoreTwo ecclesiastical objects of the late Gothic period (1350–1520) were investigated to identify the gemstones that adorn them.
Read MoreThis article illustrates the process of creating a contemporary three-dimensional intarsia sculpture.
Read MoreDuring the 1970s and 1980s, treasure hunters discovered the centuries-old remains of the sunken Spanish galleons Nuestra Señora de Atocha and Santa Margarita.
Read MoreSeveral famous and historical gemstones in the Smithsonian's collection are examined and reported on.
Read MoreChinese master carvers have produced some of the world's most sophisticated gemstone carvings.
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