Why are round diamond engagement rings more expensive than other shapes?

Round diamonds command a premium because approximately 50% of the rough stone is lost during cutting to achieve optimal light performance. This higher material waste, combined with overwhelming demand, makes round brilliants the most expensive shape per carat.

What is the ideal carat size for a round diamond engagement ring?

The most popular carat weight for round diamond engagement rings is 1.0ct, which measures approximately 6.5mm in diameter. For maximum value, consider 0.90–0.99ct stones — they appear virtually identical to 1ct but can cost 10–15% less.

Does a halo setting make the diamond look bigger?

Yes. A halo frame of small diamonds can make the centre stone appear 20–30% larger than its actual carat weight. This makes halo settings an excellent choice for maximising visual impact within a budget.

Why are round diamond engagement rings more expensive than other shapes?

Round diamonds command a premium because approximately 50% of the rough stone is lost during cutting to achieve optimal light performance. This higher material waste, combined with overwhelming demand, makes round brilliants the most expensive shape per carat.

What is the ideal carat size for a round diamond engagement ring?

The most popular carat weight for round diamond engagement rings is 1.0ct, which measures approximately 6.5mm in diameter. For maximum value, consider 0.90–0.99ct stones — they appear virtually identical to 1ct but can cost 10–15% less.

Does a halo setting make the diamond look bigger?

Yes. A halo frame of small diamonds can make the centre stone appear 20–30% larger than its actual carat weight. This makes halo settings an excellent choice for maximising visual impact within a budget.

Round Brilliant Halo Engagement Rings

Handcrafted · Hatton Garden, London

A round brilliant surrounded by a halo of melee diamonds creates maximum sparkle from every angle. The halo frame adds approximately 0.5ct of visual size, making a 1ct centre stone look closer to 1.5ct.

The round brilliant cut features 58 precisely arranged facets mathematically optimised to maximise light return, fire, and scintillation. Accounting for over 60% of all engagement rings sold worldwide, the round brilliant is the most researched and refined diamond shape in existence. Its symmetrical silhouette offers unmatched sparkle from every angle.