Australian opal is prized for stability, rare black and boulder varieties, and timeless play-of-color from Lightning Ridge and Coober Pedy. Ethiopian opal, mainly from Welo, offers vivid fire, larger sizes, and better affordability but is often hydrophane—absorbing water and needing care. For heirloom jewelry, choose Australian; for bold looks at budget-friendly prices, Ethiopian shin... https://rashiratanjaipur.net/Blog/australian-opal-vs-ethiopian-opal/