inclusions

Rare phenakite is a very hard gem material suitable for jewelry. Usually colorless, cut stones have little fire but can be very bright.

Rare malaya garnets come in many colors and make wonderful jewelry stones for any style. Learn the 4 Cs of this gem in our malaya garnet buying guide.…

A popular variety of colored quartz, rose quartz makes a durable jewelry stone. Although commonly cabbed and carved, more transparent material…

Decorative, patterned forms of agate are excellent natural gems. Learn more about agate’s mesmerizing patterns in our agate buying guide.

Learn everything about zircon buying with our comprehensive guide. Discover quality factors, colors, treatments, and jewelry considerations…

Want to start cutting beautiful star gemstones? Here are some helpful gemological resources for novice lapidaries and jewelers.

Looking for a gem that will make a big impression on your finger, not your wallet? These ten gems make great options for affordable engagement ring…

Clinohumites and chondrodites can make beautiful gemstones with rich colors, but these members of the humite mineral group are rare and little…

Fancy cut diamonds can have any finished shape, except round. These stones have their own grading criteria, in particular regarding proportion…