How Much Should You Spend on an Engagement Ring? (UK, 2026)

There is no correct amount. Spend what you can pay for without borrowing, without emptying the savings meant for the wedding, and without the number becoming something you resent later. If you want a figure to work from, most UK couples land somewhere between £1,000 and £3,000, and a certified 1 carat lab grown diamond ring at Not Mined sits inside that at £1,795. The three months' salary rule you have heard is not a tradition. It was written by an advertising agency, and this guide explains exactly where it came from and what to do instead.

In this article

• The honest answer
• Where the three months' salary rule came from
• Why the rule no longer describes reality
• What each budget actually buys
• How to decide your own number
• How long you need before the proposal
• FAQ

The honest answer

Spend what you can pay for comfortably. That is not a dodge, it is the only answer that survives contact with real life, because the right number depends on your savings, your other commitments and what the two of you actually care about.

What we can tell you is what a given number buys. Below is the real ladder at Not Mined, with every price the actual configured price on our site rather than a starting-from teaser. Once you can see what £1,795 or £2,995 puts on a hand, the question stops being philosophical and becomes a straightforward decision.

Where the three months' salary rule came from

It was written by an advertising agency, and the history is not disputed.

In the 1930s, the Great Depression had gutted the diamond market. De Beers hired the Philadelphia agency N.W. Ayer to rebuild demand. Before that campaign, a diamond engagement ring was not the norm at all: on the eve of the Second World War, only around 10% of engagement rings contained a diamond. By the end of the century, roughly 80% did. That shift was manufactured, deliberately and very effectively.

The spending benchmark was part of the same machinery. It began as one month's salary in the 1930s. In the United States it was pushed to two months during the 1980s, when sales had stalled. In Japan, where De Beers began advertising in the 1960s, the campaign set the figure at three. The escalation tracked commercial need, not custom. There was no etiquette standard before the adverts; the adverts created it.

The slogan everyone knows, "a diamond is forever", was written in 1947 by an N.W. Ayer copywriter named Frances Gerety. It has since been called the advertising slogan of the twentieth century. It also did a second, quieter job: a stone you keep forever is a stone you never resell, which protected prices by keeping second-hand diamonds off the market.

So when someone repeats the rule to you, they are quoting a sales target. There is no tradition underneath it, and no jeweller's code. There is a piece of Depression-era copywriting still doing its job ninety years later.

Why the rule no longer describes reality

Set the history aside for a moment, because there is a more practical objection. The rule assumed something that has stopped being true: that a good diamond costs a great deal because good diamonds are scarce. Under that assumption, months of salary really was the only route to a respectable stone.

That assumption broke. A lab grown diamond is the same material, graded on the same scale by the same laboratories, at 60 to 80% less. So the question is no longer how much salary you must surrender to afford a decent stone. It is what quality and size you want, now that both sit within an ordinary budget.

Put concretely: three months' salary on the UK median wage would be somewhere near £8,000. At Not Mined that buys a 3 carat D colour, VVS+ ring twice over, with change. The rule is not just invented; at current prices it is arithmetically absurd.

What each budget actually buys

Every figure below is a real configured price for a hand-picked lab grown diamond at D colour, VVS+ clarity and Ideal cut, IGI or GIA certified, set in 18ct hallmarked gold with free resizing. The metal colour does not change the price. Neither does the shape.

Budget	What it buys at Not Mined	Mined equivalent, roughly
£1,795	1 carat solitaire, D colour, VVS+, Ideal cut	A modest half carat of ordinary grade
£1,995	1 carat with a hidden halo, reads larger on the hand	Around half a carat
£2,250	1.5 carat solitaire, same grades throughout	Under three quarters of a carat
£2,995	2 carat solitaire, D colour, VVS+, Ideal cut	Around one carat, lower grades
£4,495	3 carat solitaire, uncompromised on grade	Well into five figures

Prices correct as of July 2026.

Under £2,000. This is where most UK couples sit, and it is a genuinely good place to be. A 1 carat D/VVS+ Ideal cut solitaire is £1,795. Resist trading grade for size here: a larger stone of mediocre colour looks worse on a hand than a smaller flawless one, and you will notice it every day.

See the £1,795 Round Solitaire →

Around £3,000. A 2 carat D/VVS+ solitaire lands here at £2,995. This is the sweet spot of the range: unmistakably large, no compromise on grade, still under three thousand pounds.

See the Oval Hidden Halo →

Around £5,000. A 3 carat D/VVS+ solitaire is £4,495, leaving room for the wedding band. Mined, this specification runs into five figures.

Browse rings at every carat weight →

How to decide your own number

Four questions get most people to a figure in about ten minutes.

What can you pay today without borrowing? Start there, not with a multiple of anything. A ring bought on credit at 25% APR is a worse ring than a smaller one bought outright, because you will still be paying for it when the novelty has worn off.

What else does this year have to fund? A wedding, a deposit, a move. The ring is the opening item, not the only one. Couples who spend everything on the ring often regret it by the time the venue deposit lands.

What does your partner actually notice? Some people are drawn to size, others to a particular shape, others barely think about the stone and care enormously about the setting. Buying the wrong thing expensively is worse than buying the right thing modestly.

What would you be comfortable telling them you spent? This is the most useful question on the list. If the honest answer makes you wince, the number is wrong in one direction or the other.

How long you need before the proposal

Every ring is made to order, so allow around three to four weeks from choosing the diamond to the ring arriving. If you have a date in mind, work backwards from it and leave yourself a little room. Starting the conversation early costs nothing and keeps the date yours.

If you are still working out the size, our guide to finding your partner's ring size without them knowing covers seven methods, and free resizing afterwards means a close guess is enough.

Frequently asked questions

How much should you spend on an engagement ring in the UK?

Spend what you can afford without borrowing. Most UK couples spend between £1,000 and £3,000. At Not Mined a certified 1 carat lab grown diamond ring is £1,795 and a 2 carat is £2,995, both at D colour and VVS+ clarity in 18ct gold. View engagement rings →

Is the three months' salary rule real?

No. It originated in De Beers advertising created by the agency N.W. Ayer from the 1930s onwards. The benchmark began at one month's salary, rose to two months in the United States during the 1980s, and was set at three months in Japan. There was no etiquette standard before those campaigns.

What is the average spend on an engagement ring in the UK?

Most UK couples spend somewhere between £1,000 and £3,000, though the range is wide and averages are pulled upward by a small number of very expensive purchases. Treat any average as context rather than a target.

Is it acceptable to spend less than £1,000?

Yes. There is no minimum that makes a proposal legitimate. If your budget is below our range, say so when you get in touch and we will tell you honestly what is possible rather than pretending otherwise.

Does a lab grown diamond mean I can spend less?

It means the same money buys considerably more. A lab grown diamond is chemically and optically identical to a mined one and costs 60 to 80% less, so most people use the saving to buy better quality or a larger stone rather than simply spending less. Our guide to whether lab grown diamonds are worth it covers the trade-offs honestly, including resale.

Still working out the number? That is normal, and there is no rush. Nothing on this page expires, and when you are ready we will help you find the ring that fits it.