A child looks up to his partner as she stands above the crowd with the support of an elaborate rig of hidden metal rods, during the Bun Festival parade at Cheung Chau island in Hong Kong on May 22, 2018. Thousands of local residents and tourists flocked to an outlying island in Hong Kong to celebrate a local bun festival on Tuesday despite the recording-breaking heat. (Photo by Bobby Yip/Reuters)

A supporter dressed as flamingo cheers on the riders during the 12th stage of the 102nd Giro d'Italia – Tour of Italy – cycle race, 158kms from Cuneo to Pinerolo on May 23, 2019. (Photo by Marco Bertorello/AFP Photo)

A Pakistani labourer carries bricks on his back at a construction site at a residential area in Islamabad on March 29, 2017. (Photo by Aamir Qureshi/AFP Photo)

Cats dressed as characters from the film Frozen wait to be judged during the costume contest at the New England Meow Outfit's 10th Annual Allbreed and Household Pet Cat Show in Natick, Massachusetts, on August 27, 2023. (Photo by Joseph Prezioso/AFP Photo)

A competitor competes during the Hortobagy Hobby Horse Cup in Tiszafured, Hungary, on October 26, 2024. (Photo by Bernadett Szabo/Reuters)

Triathletes swim during an Ironman event in Taupō, New Zealand, on Saturday, March 1, 2025. (Photo by Phil Walter/Getty Images)

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.

View of an American marine as he lies in a foxhole and whistles at a husky, one of the scouting dogs used during the landing on Guam, August 1944. (Photo by W. Eugene Smith/Time & Life Pictures/Getty Images)