There is an endless bounty of eye-catching gemstones throughout the world and this spectacular boulder opal is one unique beauty that looks like a shimmering crystal encased in a tree fossil. Its opalescent sheen seeps through the cracks of the seemingly wooden rings in lustrous hues of emerald green and aqua blue. Like something out of a fairy tale, the triangular piece radiates through an organic pattern mimicking the growth rings of tree.

An athlete takes part in a warm-up around the track of the National Stadium in Tokyo on September 12, 2025, ahead of the World Athletics Championships. (Photo by Kirill Kudryavtsev/AFP Photo)

Members of Taliban take pictures of the devastated village of Mazar Dara following a deadly magnitude-6 earthquake that struck Afghanistan, Kunar province, Afghanistan, on September 1, 2025. (Photo by Sayed Hassib/Reuters)

Border between Sweden and Norway at Moldusen. An approximately 20-meter wide clearing in the forest separates the two Scandinavian nations, consequently cutting Finnskogen in two. Grue Finnskog 2016. (Photo by Terje Abusdal/The Washington Post)

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Phoenix Mercury guard Sophie Cunningham takes a selfie with teammate Brittney Griner, during the WNBA basketball teams' media day, in Phoenix, Wednesday, May 3, 2023. (Photo by Matt York/AP Photo)

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English model and actress Cara Delevingne attends The 2023 Met Gala Celebrating “Karl Lagerfeld: A Line Of Beauty” at The Metropolitan Museum of Art on May 01, 2023 in New York City. (Photo by John Shearer/WireImage)