Ruby Value, Price, and Jewelry Information One of the most popular traditional jewelry stones, ruby is exceptionally durable. The colors of the July birthstone — always red — can reach…
Corundum Value, Price, and Jewelry Information Next to diamond, corundum is the hardest mineral known and is very compact and dense, with no cleavage. As a result, corundum is one of the best of…
The Fiery Heart of Africa: the Allure of Mozambique Rubies Mozambique rubies have drawn the attention of gem and jewelry lovers and investors. Learn what makes these African gems so appealing.
Evolution of the Pigeon’s Blood Ruby Color Grade Learn how pigeon’s blood ruby color grading standards have evolved and how to choose the best gemology labs for grading these stones.
Gübelin Grades an Exceptional Vietnamese Ruby with “Pigeon’s Blood” Color How does Vietnamese ruby compare to Burmese ruby? Learn about the “Red Treasure” of Vietnam and why even experts can misidentify ruby origins.…
Appraising Rubies Appraising rubies is a skill every jeweler and gemologist needs to master. Learn about the different quality factors that can affect ruby prices.…
Common Gemstone Treatments Cheat Sheet There are so many common gemstone treatments available today that keeping track of them can be difficult. This list and handy cheat sheet can help.…