1. Are opals real gemstones?

Yes. Opal is a natural gemstone formed when water carries silica into cracks in rock, where it slowly hardens over time. Many people confuse real opal with synthetic versions, but natural opal is a genuine mineral prized for its colour play.

2. What gives opal its colours?

The colours come from tiny silica spheres inside the stone. When light enters the opal, it bends around these spheres and creates flashes of colour. This is known as play of colour, and it is unique to opal.

3. What is the difference between black opal, boulder opal and white opal?

• Black Opal: Dark body colour, strongest and most vibrant colour play.

• Boulder Opal: Formed within ironstone, often with natural host rock attached, known for striking patterns.

• White Opal: Paler background with softer, pastel colour play.

They are all natural opals but come from different geological conditions.

4. Is opal fragile?

Opal is softer than that of diamond and sapphire, with a hardness of around 5.5–6.5. It is very safe to wear in jewellery when set correctly (bezel is best). Avoiding sudden impacts, harsh chemicals and extreme temperature changes are advised which are the common requirements all gemstones, remember the most damaged gemstone is a diamond they are hard but brittle so care wearing any gemstone is key.

5. How can I tell if an opal is real or synthetic?

Real opals show natural variations, irregular patterning and depth. Synthetic opals often have perfect, repeating patterns or a ‘lizard skin’ look. If unsure, check the seller’s sourcing or ask for a close-up photograph.

6. Do opals need to be kept in water?

No. This is a myth. Opals do not need to be stored in water. Simply keep them in a dry, stable environment away from extreme heat. Some opals contain a small amount of natural moisture, but they do not require soaking.

7. What is opal doublet or triplet?

A doublet is a thin slice of real opal attached to a dark backing to enhance colour.
A triplet adds a protective top layer, usually quartz or glass.
They are partly natural but less valuable than solid opal.

8. What is the most valuable type of opal?

The most valuable is black opal, especially from Lightning Ridge in Australia, due to its dark body colour and vivid play of colour. Exceptional boulder opals and crystal opals can also be highly prized.

9. Where do the best opals come from?

Australia produces around 90 percent of the world’s precious opal, especially from Lightning Ridge, Coober Pedy, Andamooka, Yowah and Koroit. Ethiopia and Mexico also produce opal, but with different characteristics.

10. How should I care for my opal?

• Avoid knocks or dropping the stone

• Keep it away from strong chemicals and cleaning agents

• Remove jewellery during heavy work

• Wipe gently with a soft cloth

• Store separately to avoid scratches

Proper care helps preserve colour and shine.