aquamarine

Few gems have held our attention over millennia as well as sapphire. The pure blue colors and excellent durability of this gem-quality member of…

Although gemstone magnetism isn’t commonly tested, it can help gemologists distinguish similar looking gems. Learn how to analyze this property.…

Emeralds get their green color from chromium and vanadium. Learn how the presence of these elements affects their formation and causes emerald…

How do gems likes rubies and red beryls get their red color? Learn the role impurity ions play in the coloration of these and other gemstones.

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…

Trapiche emerald gems are some of the world’s rarest emeralds. Learn where they’re found and how their characteristic “spoked wheel” patterns…

Emerald treatments, such as oiling, are very common. Learn what these techniques do, how emeralds are graded, and what gems make great green alternatives,…

Blue is one of the rarest colors in nature. Nevertheless, blue gemstones are always in demand for jewelry. While people have adorned themselves…

Mention sapphire and most people will probably imagine this September birthstone as a blue gem. Although blue specimens are probably the most…