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Knowledge Centre

Jewellery

Learn about diamonds and coloured stones, read laboratory reports and choose care appropriate to the material.

All topics · 24Buying pre-owned goods · 8Gold · 5Jewellery · 4How-to · 4Rates · 3

4 articles

Jewellery

Treated gemstones: what to ask before buying or cleaning

Understand heat treatment, fracture filling and why cleaning methods must suit the actual stone.

3 minSources included
Money OK archive photograph: jewellery
Money OK archive photograph: ringsJewellery

How to read a diamond report: 4Cs and the checks that matter

Understand carat, colour, clarity and cut, verify report details and inspect the actual ring before buying.

3 minMoney OK archive photograph: jewelleryJewellery

Ruby, sapphire, emerald and other popular gemstones

Recognise gemstone names and ask the right questions about identity, origin, treatment and condition.

3 minMoney OK archive photograph: ringsJewellery

Natural diamonds, lab-grown diamonds and simulants: what is the difference?

Understand diamond origin, lab-grown material, moissanite and CZ before buying or asking about pawning.

3 min

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