Discover our blog about opals, minerals and gemstone fairs
Discover our blog dedicated to natural opals, their origin, their formation and their value.
Learn to recognize a true opal, choose a quality stone and understand the differences between Australian opals, white opals and black opals.
Our comprehensive guides accompany you to buy an opal with confidence, understand its price and explore the most beautiful stones in the world.
Why is Australian opal becoming rare? | Complete Guide 2026
Why is Australian opal becoming increasingly rare? Australian opal is one of the most fascinating gemstones in the world. Its unique color sets - red, green, blue or multicolored - give the impression that a real rainbow...
Australian rough opal prices in 2026: full guide
Introduction The price of Australian raw opals in 2026 is attracting increasing interest. Indeed, these natural stones are increasingly sought after for their unique beauty and their potential after size. However, all raw opals do not have the same...
Price of polished opals in 2026: complete guide to values and estimates .
Introduction The price of polished opals in 2026 varies greatly according to quality, rarity, origin and type of stone. Indeed, some polished opals remain accessible, while others reach much higher price levels. So...
Noble opal, doublet, triplet: how to recognize them ?
Noble opal, doublette, triplette: what differences? The opal is a fascinating stone. It attracts with its playful colours, changing light and unique appearance. Yet, many people wonder what the difference is between a...
Top 5 gold mines in Australia
Top 5 Doopal Mines in Australia: Complete Guide Introduction Australia is the world leader in opal, with over 90% of world production. Thanks to unique geological conditions, this country offers Gemstones with exceptional colors...
How do I recognize a real opal ? (Full Guide)
How do I recognize a real opal? (Full Guide)Introduction Recognizing a true opal is essential before any purchase, especially given the many imitations available on the market. Between Natural Opals, synthetic opals and assemblages like...
How to polish an opal easily: complete guide for beginners
How to polish an opal easily: complete guide for beginners Policing an opal is an essential step to reveal all the beauty of this Gemstone. Indeed, Rough Opal may seem dull at first glance. However, with a good...
Guide to opal: how to recognize, choose and buy an opal
Guide for beginners: Understanding, recognizing and buying an opal Introduction The opal is one of the Gemstones the most fascinating in the world. Unlike diamonds or rubies, it is distinguished by a unique phenomenon: play of colour,...
Origin of opal: Australian training, history and mines
History of the opal: dinosaurs, opalization and large Australian deposits The opal is one of the most fascinating stones in the world. With its changing reflections and sometimes spectacular colours, it has for centuries captivated lovers of gems,...
The Munich Minerals Fair
Exhibition of minerals & gems in Saintes Marie-aux-Mines
Exhibition of minerals & gems in Saintes Marie-aux-Mines
Annemasse Haute-Savoie Exhibition of minerals
In the heart of Annemasse, the Minerals Salon invites you to dive into a fascinating world where each stone tells a unique story. Discover the magic of iridescent opals, exotic gems and natural treasures carefully selected for...
Gemstone Convention in Bangkok
International Convention of Precious Stones in Bangkok
places of extraction of the opal in the world
The different locations of opal extraction
Fossilized opals
Precious dinosaur relics
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