Which of the four Cs actually matter, the specification most people should buy, and a step-by-step way to choose the ring.

What is average, what actually suits a hand, and how to make a stone look larger without buying a larger one.

What man-made really means, the six questions that separate good sellers from bad, and how UK buying options compare.

No. A UK civil wedding is legally valid without rings. Here is what the law actually requires, and how the ring exchange fits in if you want one.

Round brilliant leads, and here is why – plus what is gaining on it and why popularity is a poor reason to choose a shape.

Diamonds are still the UK default, but six things around them have changed. An honest look at what has shifted and what has not.

A 6mm round diamond is about 0.80ct and a 4mm is about 0.25ct. Full mm-to-carat chart plus what really makes a stone look bigger.

A solitaire is a ring set with one diamond and nothing else. Setting styles, real prices, pros and cons, and how to choose one.

Rough diamond looks like a greasy grey pebble with no sparkle at all. Here is what uncut diamond really looks like, and why cutting changes it.

What a 2 carat cushion cut really looks like, what drives the price, and which settings suit it. Lab-grown pricing explained honestly.