About microWorld of Gems

microWorld of Gems (mWG) is an extensive resource on the internal world of gemstones—for the beauty they display and the information they reveal about their identity, origin, and sometimes, treatment.  microWorld of Gems is pleased to represent the work of gemologist John I. Koivula, the leading authority in the world today on inclusions in gems and minerals.

John Koivula has had a passion for the science of inclusions in gems and minerals since childhood. For him, a serious avocation led to a formal education in chemistry and geology, and subsequently, a career in gemology. His keen interest in the microworld of gemstones has produced seminal gemological research and the development of many new and useful techniques for photomicrography of gemstones.

The publication of John Koivula's work over the past 30 years—his photomicrographs and numerous articles, technical papers, as well as four books—has contributed to a growing interest in collecting gemstone inclusions. Signed copies of books by John Koivula are now available through microWorld of Gems. View books currently available.    

Koivula's refined aesthetic sensibility complements the informative content of the subjects he photographs through the microscope, and so, his photomicrographs are appreciated for their beauty as much as they are for the documentary information they disclose. For the first time, John Koivula's photomicrographs are available to the public as giclée prints. View current exhibition.

microWorld of Gems Services

mWG offers giclée prints reproduced from John Koivula's photomicrographs, gemstone inclusion specimens, custom photomicrography and selected books on gemstone inclusions.

microWorld of Gems collaborates with art galleries and museums on exhibiting its collection of fine art prints of inclusion photomicrographs. Please contact Kristi A. Koivula at (760) 734-3806 or click here to request a press kit.

John Koivula performing Raman spectroscopy in the GIA Research laboratory