5/28/2023 0 Comments Natural blue sapphire![]() These impurities have the potential to change the crystal’s colour. So why does it command such prices when it is placed in jewellery? When the corundum crystal grows in the earth, it may let in chemical impurities. In fact, it is commonly used as an abrasive, think sandpaper or emery boards. Sapphire is a variety of the mineral corundum – a fairly abundant material composed of aluminium oxide. ![]() What makes Kashmir sapphires so special? What about the padparadscha? What role do treatments play in value? Here, Gem-A tutor, Beth West FGA DGA EG offers a beginner’s guide to sapphire value.
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