opal

Opal is a complicated gemstone, and many factors affect its price. Learn how to distinguish these eight opal types and how they differ in value.…

Curious about how opals form and show such stunning colors? Learn about the scientific theories behind opal formation and why some opals show a…

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…

Step 4: Gem Grading Lesson 18 Back to syllabus Gemologists evaluate opals a little differently than other gemstones. The traditional Four Cs still…

black opals yowah opal nuts boulder opal…

Once the stone of royalty, the fragile opal has a convoluted personality and lore. Opal symbolism is as varied as the stone’s play of color.

Celebrate your unique love story with an opal engagement ring stone. Though opals require extra care, no other gem combines color and fire the way…

Opals and pearls have special setting, cleaning, and storage needs. Our opal and pearl care guide will help you keep your jewelry beautiful.

The town of Coober Pedy, Australia produces more opal than anywhere else. Its culture has been thoroughly shaped by opal mining. Learn more about…