Each month has at least one representative gemstone. Here's what you need to know about October's birthstones.

October's primary birthstone is the opal. This gem is renowned for its unique play of color and has captivated gem lovers for ...

A comparison of this purple opal with numerous samples from Ethiopia’s Wollo Province strongly suggests that it is actually dyed hydrophane opal from those deposits. Several previously undocumented ...

Goodbye summer, hello fall! As we trade our beach towels for cozy blankets and swap our ice cream treats for hot apple cider, ...

Harris explains that most opals are mined in Australia, but there are other sources including Ethiopia, Brazil, Mexico and even the United States. Interestingly, depending on where the opals come ...

Opals can also be found in Ethiopia, Mexico, Brazil, Central Europe, Honduras, Indonesia, Madagascar, Peru, Turkey and the U.S. In ancient Greece, it was believed opals could protect against ...

We've dug up the most interesting underground attractions across the globe, from wartime tunnels and salt mines to rock-hewn ...

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Notable instances are Ethiopia’s Opals, Kenya’s Tsavorite, Madagascar and Sapphires, Mozambique’s rubies, Tanzania’s Tanzanite and Zambia’s Emeralds. Despite having deposits of these ...

Lee sources for beautiful yet well-priced stones such as mabe pearls from Indonesia, turquoise from Iran and Arizona, and black opal from Ethiopia. Savage Archipelago’s designs are timeless and ...