Yowah nuts are walnut-sized stone concretions with opal in their centers. A split Yowah nut, “Lagoon,” Queensland, Australia. Photo courtesy of liveauctioneers.com and Bonhams.
Yowah nuts are walnut-sized stone concretions with opal in their centers. A split Yowah nut, “Lagoon,” Queensland, Australia. Photo courtesy of liveauctioneers.com and Bonhams.
Cabochon cuts are popular for showcasing opal doublets. Learn a trick for making a bezel setting for doublets that are wider on top than the bottom.…
Opals are unique gems with their own unique terminology. Learn the modern standard system for classifying and appraising opals used by major gem…
The faceting process turns rough stones into finished gems. Learn the steps custom faceters take to create unique gemstones that tell a client’s…
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