Opals — Origin, Rarity & Value
One of the world's most treasured gemstones, prized for exceptional colour and brilliance.
Origins & Mining Locations
Where the world's finest opals are sourced.
Colour Varieties
Ranges from pale blue to vivid royal blue, with prized varieties including cornflower and padparadscha.
10-Year Price Appreciation
Fine sapphires have shown strong long-term demand, particularly unheated stones with vivid colour and reliable origin documentation.
Indicative price index for fine quality opals. GemMine research data.
Mohs Hardness Scale
Opals rates 9 on the Mohs scale of mineral hardness (1 = softest, 10 = hardest).
At 9 Mohs, opals is exceptionally durable and suitable for all jewellery including daily-wear rings.
Scarcity & Supply Warning
Fine untreated sapphires in vivid saturation and larger sizes are increasingly difficult to source consistently.
Based on current mining rates and known reserve estimates. GemMine research.
Ethical Sourcing & Certification
GemMine sources from certified ethical suppliers with full chain-of-custody documentation where available.
Care & Storage Guide
Keep away from bleach, acids, and strong cleaning agents which can damage or discolour the stone.
Use warm soapy water and a soft brush. Rinse thoroughly and dry with a lint-free cloth.
Store in a soft pouch or lined jewellery box. Keep away from other stones that may cause scratching.
Protect from sudden temperature changes and prolonged direct sunlight which may affect colour.
Generally durable for jewellery. Clean with warm soapy water and store separately from softer stones.
Browse Opals in Stock
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Request a Stone⚠ Rarity & Investment Notice
Fine quality opals are increasingly scarce as known deposits deplete.
Fine untreated sapphires in vivid saturation and larger sizes are increasingly difficult to source consistently.
Browse Available Opals