| Features | Australian Opal | Ethiopian Opal |
|---|---|---|
| Place of Origin | Sedimentary (older) | Volcanic (newer) |
| Hydrophane | No (it does not absorb water) | Yes (it absorbs water or oils) |
| Water Impact | Stable, stays unaffected | Intensifies the colour, a temporary change in their transparency, which makes them unique and more desirable |
| Price | Higher (rarer) | More affordable |
| Appearance | Intense, prominent patterns | Vibrant, honeycombed, diverse |
| Best For | Daily wear purposes or investment | Fashion jewellery or budget purchases |