“Cameos in Context The Benjamin Zucker Lectures, 1990”; “Gemstones of North America, Volume III”; “Diamond Exploration Techniques Emphasising Indicator Mineral Geochemistry and Canadian Examples”; “An Overview of Production of Specific U.S. Gemstones”; “Gemmologia Europa V—European Gemmologists on Rubies and Sapphires”

Over the last 25 years, the diamond-cutting industry worldwide has been revolutionized by sophisticated instruments that provide invaluable aid in the process of creating a polished gem.

Zimbabwe’s Sandawana mines have been an important producer of emeralds for 40 years.

Award-winning jewelry designer Paula Crevoshay found that careful planning and quick adaptation allowed her business to thrive in 2020 and beyond.

Raman analysis identifies yellow agate treated by low temperature masquerading as a new type of “Shi Zi Hong” agate.

Geologic design and pure luck turn a sliced geode into a beloved Muppet and an international Internet phenomenon.

Colored stone dealer Dudley Blauwet describes attending the 2021 Tucson “show,” the heightened interest in yellow sapphire and gray spinel due to Pantone’s colors of the year, the rough supply situation, and Afghani blue spodumene.

Mr. Braunwart highlights newer trends such as younger female clients with strong digital platform experience, and increasing interest in North American stones as well as melee and smaller stones.

As an online jewelry shopping platform, GSN was well-positioned to ride out the pandemic and even improve their performance, resulting in one of their strongest years financially.

Thanks to an established online presence, Earth’s Treasury has had good sales throughout the pandemic, which raises the question of the future of international gem shows.

Philadelphia appraiser Josh Hyman credits consumer confidence in purchasing gems online and increased discretionary spending due to lack of travel with the quick comeback following pandemic shutdowns.

National and provincial regulations varied greatly in East Africa during the pandemic, affecting the supply of rough gems throughout the entire industry.

A set of loose stones submitted as diamond prove to be phenakite when put through a series of diagnostic tests.

The authors examined diamond grit-impregnated tweezers that reportedly were being marketed out of Japan.

The filling of surface-reaching breaks in emeralds is a relatively common practice, for which various kinds of oils and a natural resin have historically been used.

Emeralds are again being mined in the historic district of the Ural Mountains. Physical, chemical, spectroscopic, and microscopic characteristics of stones from the recent production are presented and compared with data on older samples as well as those reported in the literature.

Examination of samples of faceted

Greek manufacturer J. & A. Douros introduced a new flux synthetic ruby in early 1993.

Mananjary emeralds usually can be separated from emeralds from other localities by means of associations of certain mineral inclusions.