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The optical properties of gems attract our eyes and can give a cut stone a unique character. However, gemstone physical properties are also important.…

Gem treatments can affect a stone’s value and stability. Learn how the most common procedures work and how to identify enhanced gem inclusions.…

Explore the amazing world of gemstone photomicrography. These tips can help you view and photograph spectacular inclusions found inside many…

Quartz color treatment results vary due to the stone’s origin. Learn the effects you can achieve with different materials and radiation and heat…

Center-fused color treated gems are assembled from natural rough. Learn how the procedure works and how to identify this stable color enhancement.…

Gemstone heat treatments can increase the beauty and value of many rough pieces. Learn how to conduct the most common procedures safely.

What’s working in a gem lab like? Gemology tools expert Cara Williams talks about the challenges as well as the most useful equipment for identifying…

Rarely does a gemstone have popular associations with multiple colors. Traditionally, topaz was favored as a golden yellow stone. Nowadays,…

One of the most abundant minerals on earth, quartz can occur in several geological environments. Learn how quartz forms and how its most popular…