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The Knowledge Hub
Plain-spoken reference on choosing, wearing and caring for Ceylon sapphires and the jewellery made from them.
Our Philosophy
Knowledgeisthequiethalfofagoodpurchase.Themoreyouunderstandaboutasapphire,howharditis,howitwastreated,andhowasettingprotectsit,thebettereverydecisionthatfollows.Wesetwhatweknowdowninplainwords.
More guides

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Why Mohs 9 matters for an everyday ring, and the property it does not describe.

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What each metal actually is, and what each setting style does for the stone.

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Safe cleaning, real risks, and the checks that prevent a lost stone.

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The blue stones mistaken for sapphire, and what actually separates them.

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What causes the star, why it moves, and how to judge one.
Questions
The essentials every collector asks before they buy, distilled from our guides.
Whether it has been heated. A confirmed unheated stone is rare and commands a large premium, because its colour is the work of the earth alone. After that, a confirmed Ceylon origin and an independent laboratory report matter most.

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Tell us what you're looking for: a loose stone, a bespoke commission, or a private viewing. A specialist will reply to you personally.