inclusions

A very pretty, nices sized grossular garnet that sometimes looks like a Merelani mint garnet and other times is more light yellow. The clarity in…

Made from two or more materials, assembled gems can make durable and affordable jewelry. Learn more about gemstone doublets, triplets, and other…

I cut this tourmaline in a design much like Jeff Graham’s Smithsonian Bar, but added some extra facets to both the top and the bottom. The color…

Opal cabochons can fetch high prices but may be difficult to cut. These tips for carving opals can help gem cutters make the most of these beautiful…

This unheated sapphire has a pleasing powder blue color and, even though it has some fine silk under magnification, I can’t see any inclusions…

Cutting opals is a delight, but gem cutters may encounter a number of challenges when cabbing. However, with some carving techniques and a little…

With a fascinating folklore and intense beauty, opal has inspired many imitations. Jewelers have used a variety of synthetic materials as well…

An assembled gemstone is constructed from two or more combined materials. Gemstone doublets and triplets, intarsias, and rhinestones are all…

Step 4: Gem Grading Lesson 17 Back to syllabus Gemologists can determine the color, clarity, and cut grades of gems like diamonds and rubies reasonably…