Master Grade Gemstones: What to Check Before You Buy

A gemstone can look extraordinary under a jewellery counter's spotlights and disappoint the moment it reaches daylight. "Master grade" isn't a universal, regulated standard -- it's a claim, and a serious jeweller should be able to explain exactly what sits behind it for your specific stone: cut, colour, clarity, durability, and any treatment history.

The quick checklist: ask to see the stone in natural daylight, not just showroom lighting. Understand that treatments (like heat-treated sapphires) aren't automatically a problem, but they should be disclosed plainly. And don't chase carat weight alone -- a smaller, well-cut stone with real colour will usually outshine a larger one that looks flat or lifeless.

For the full guide on what the term actually means and how grading varies between stone types, see: What Master Grade Gemstone Jewellery Means.

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