Diamond Hub

The Truth About Engagement Ring Rules

Simple, honest diamond advice from London Diamonds.

03 June 2026 4 min read

How much should you spend?
How big should the diamond be?
What’s the “right” way to propose?
What’s considered impressive?

Most people assume these rules have always existed.

They haven’t.

A huge amount of what people believe about engagement rings today was shaped by decades of advertising designed to influence behaviour and increase spending, not because there’s one objectively correct way to buy a ring.

Why that matters

  • There is no fixed amount you “should” spend
  • Bigger isn’t automatically more meaningful
  • Expensive doesn’t always mean better
  • A ring should suit the wearer, not social expectations

A lot of people end up making decisions based on pressure, comparison or outdated marketing ideas rather than what actually feels right for them.

What most jewellers don’t explain

The jewellery industry has historically relied on emotional messaging around status, tradition and spending benchmarks because it helps drive larger purchases.

That’s where many of the “rules” came from.

The famous salary-based spending guidelines, for example, were marketing campaigns, not universal standards.

How we do it differently at London Diamonds

We focus on helping people make informed decisions rather than pushing fixed ideas about what they should buy.

That means talking honestly about:

  • Budget
  • Priorities
  • Style
  • Practicality
  • Long-term value
  • What actually matters to the wearer

For some people that means a larger lab grown diamond.
For others it means a smaller mined diamond with exceptional cut quality.
For others it means spending less and focusing on the setting or design.

There isn’t one correct answer.

What that means for you

  • You buy based on what matters to you
  • Your budget is used more intelligently
  • You avoid unnecessary pressure
  • The ring feels personal instead of performative

The takeaway

Most engagement ring “rules” were created to influence buying behaviour.

The right ring is simply the one that feels right for the person wearing it.

Questions

Frequently asked questions

Short answers to the questions people usually ask when they start looking into diamonds.

Why do diamond prices vary so much?

Pricing is affected by factors like cut quality, rarity perception, certification, origin, demand, and how the diamond is sourced through the supply chain.

Does a diamond certificate show when the diamond was bought?
  1. No. A certificate date only shows when the diamond was graded by a lab such as GIA or IGI, not when it was mined, traded, or purchased.
Can two diamonds with the same grading look different?

Yes. Two diamonds with identical certificates can still perform very differently in real light depending on cut precision, proportions, and overall make.

Are older diamonds lower quality?

Not necessarily. Some older stones can actually represent better value because pricing, demand, and market conditions change over time.

Why doesn’t London Diamonds just sell stock already in-store?

We source diamonds around your brief rather than limiting you to existing inventory. That allows us to compare more options and focus on where the real value sits.

London Diamonds

Need help choosing the right diamond?

We compare diamonds properly, explain what actually matters, and help you avoid paying for things you’ll never see.