Measure, calculate and convert your ring size, with a complete EU, US and UK comparison chart.

Yellow gold, white gold, rose gold or platinum: how each metal looks, wears and ages.

Prong, bezel, pavé or channel: how each setting holds your diamond, and what it means for sparkle and security.

Solitaire, halo, three-stone or toi et moi? A guide to the most loved engagement ring styles.

Brilliance, fire and scintillation: the three kinds of light that make a diamond come alive.

Table, crown, girdle, pavilion and culet: the parts of a diamond, and the proportions that make it shine.

Same carbon, same sparkle, different origin. Here is how lab-grown and natural diamonds compare, and why we choose lab-grown.

Shape is the first thing people notice. Compare the character, sparkle and proportions of every popular diamond shape.

Cut, colour, clarity and carat decide how a diamond looks and what it costs. Here is how each one works, and where it is worth investing.