jewelry

Learn how diamonds formed geologically and how they became the virtual standard for engagement ring stones in this brief history of diamonds.…

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.

Checkered hearts make popular gem cuts. Jeff Graham’s Heart Squared design works well with any medium to light-colored material.

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…

Jeff Graham’s original Rainbow gem design has always been popular. However, inexperienced faceters have found it very challenging. This updated…

Gemstone luminescence is a glow that occurs when certain stones are subjected to energy such as UV light. This effect can help gemologists identify…

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

Jeff Graham’s Brilliant Pear gem design will produce a pleasingly shaped stone, ideal for novice faceters. Professionals will also like this…

Jeff Graham’s Smith Bar gem design is easy to cut. One Smith Bar gem has even found its way into the Smithsonian Institution. Learn the story behind…