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.

What is the best engagement ring for £5,000?

For £5,000, you can choose a 1ct natural diamond solitaire in platinum — the most classic combination — or a 2ct lab-grown diamond ring for maximum visual impact. At MOH, our experts can guide you to the perfect balance of stone, setting, and metal for your 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.

What is the best engagement ring for £5,000?

For £5,000, you can choose a 1ct natural diamond solitaire in platinum — the most classic combination — or a 2ct lab-grown diamond ring for maximum visual impact. At MOH, our experts can guide you to the perfect balance of stone, setting, and metal for your budget.

Round Brilliant Engagement Rings Under £5,000

426 handcrafted designs · Hatton Garden, London

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.

Under £5,000, you have access to MOH's complete range — from 2ct lab-grown showpieces to 1ct natural diamond engagement rings in premium settings. This is the price point where you can have exactly the ring you envision.