Featured guide

Why order matters: how to choose an engagement ring in six steps
Why a set order cuts the overwhelm Why do so many people stall when they start to choose an engagement ring? There are many…
The Ralph Jacobs journal
Plain-English guides with honest trade-offs, from a jewellery maker in South Africa.
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Article · 10 min
Why choose a light-coloured sapphire for an engagement ring?
Why a light-coloured sapphire needs a closer look Why does colour matter so much when you choose a pale sapphire? Colour has the greatest influence on a sapphire’s value, and…
Article · 9 min
Why custom rings take time, and what can slow them down
Article · 10 min
Why are some diamonds treated? Diamond treatments explained
Article · 9 min
Why does a wide band fit tighter? Wide band ring size explained
Article · 9 min
Why does a hidden halo engagement ring differ from a halo?
Gemstone encyclopedia
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Featured guide

Why a set order cuts the overwhelm Why do so many people stall when they start to choose an engagement ring? There are many…
Featured article

Why the 4 Cs of diamonds exist You keep hearing about the 4 Cs, but can you actually see the difference between grades? Not…
Use the tool
Convert between South African, UK, US and European ring sizes, with the caveats that matter.