Opal Earrings

A Guide to Buying Opal Earrings in Australia

Opal is Australia’s national gemstone, and there’s a good reason for that — some of the world’s finest opals come from Coober Pedy, Lightning Ridge, and Andamooka. Wearing opal earrings carries a distinctly Australian connection that few other gemstones can match. With prices ranging from $24 to $527 AUD, the category spans created opals in sterling silver settings through to genuine Australian opals with serious fire and colour play.

The first thing to understand about opal earrings is the difference between natural opals, created (lab) opals, and imitation opals. Natural opals are mined, each one unique in its colour pattern. Created opals are grown in laboratories using the same chemical structure as natural opals — they have real colour play and are visually indistinguishable to most people. Imitations (glass, resin, or plastic) mimic the look but lack genuine colour play — they’re flat and unconvincing up close.

Types of Opal and Their Characteristics

White opals have a light body colour with pastel colour flashes — blues, greens, pinks. They’re the most common and most affordable natural opal type. Fire opals show vivid red, orange, and yellow body colour with or without colour play. Black opals (from Lightning Ridge) have a dark body colour that makes colour play explode with intensity — they’re the rarest and most expensive.

For opal earrings at accessible price points, created white opals and created fire opals deliver stunning visual impact. They’re consistent in colour (no dull spots), stable in hardness, and significantly less fragile than natural opals. A pair of created opal studs in sterling silver looks spectacular for under $50.

Settings That Protect Opals

Opals are softer than most gemstones (5.5 to 6.5 on the Mohs scale) and contain water within their structure, making them sensitive to heat and dehydration. Bezel settings — where the metal wraps completely around the stone’s perimeter — provide the best protection for opal earrings. Prong settings expose the stone edges to bumps and knocks.

Stud earrings with bezel settings are the most practical choice for daily wear. Hoop earrings with embedded opals work well because the opal is protected within the hoop structure. Dangle earrings with opal drops are stunning for occasions but carry more risk of impact damage — the swinging motion can knock the stone against surfaces.

Caring for Opal Earrings

Natural opals need humidity to stay healthy. Store them in a cool location away from heaters and air conditioning vents, which dry the air. Some opal owners keep a damp cotton ball in the storage box to maintain moisture. Created opals are more stable and don’t require humidity management.

Never clean opal earrings with ultrasonic cleaners, steam, or chemicals. Warm water with a soft cloth is all you need. Opals can crack from thermal shock — going from hot to cold rapidly — so avoid wearing them into saunas or exposing them to extreme temperature changes.

Australian summers can be harsh on opals left in hot cars or direct sun for extended periods. The heat dehydrates the stone, potentially causing crazing (fine surface cracks). Treat your opal earrings with the same care you’d give to a living thing — they genuinely need moisture and moderate temperatures to thrive.