Gem Origin Opinions: When Gemology Labs Agree to Disagree on Sapphire Origins
Why do gemology labs sometimes have different gem origin opinions, especially for sapphires? Learn the science and history behind the debate.…
Why do gemology labs sometimes have different gem origin opinions, especially for sapphires? Learn the science and history behind the debate.…
April 21, 2022 An astonishing record-breaking rough ruby of 8,400 carats, weighing 2.8 kilograms, from Winza, Tanzania has gone on display at…
To meet the demand for fine emeralds with no clarity enhancements, dealers search for gems to clean and recut. Learn how this emerald transformation…
Colombian emeralds can command premium prices. Jeffery Bergman separates emerald myth from fact when it comes to determining the origins of these…
A couple claims the Beleza Emerald was lost in the Camp Fire of 2018 and was worth $280 million. The valuation doesn’t add up to us, and we explain why.…
Almost all cut emeralds have had clarity enhancements. Learn how these emerald enhancements work, what substances are used, and how to detect…
A number of online sites have reported on a large emerald, supposedly recently extracted from the Chivor mine in Colombia. However, is this apparently…
Ruby-glass composites and leaded glass ruby clarity enhancements are difficult for gemologists to detect. Learn how to identify these gems and…
Emerald crystals can grow very large. Learn about some of the world’s largest emeralds, whether rough, faceted, or carved.
The Eye of the Lion.This Cats-Eye Chrysoberyl is the largest cut example in the world(as documented by the Smithsonian Institute)with a fascinating…
Carved in Thailand in 2006 from a 3,600-ct emerald, “The Sacred Emerald Buddha” has a message of peace. Read the inside story of this amazing…