Engagement Ring Budget Calculator
How much should you spend on an engagement ring? Compare the one-, two- and three-month salary rules with what you can actually save by the proposal date and pay in cash.
How it works
Rule budget = annual income ÷ 12 × months of salary · cash by the proposal = saved + monthly saving × months · shortfall = budget − cash · months needed = ⌈(budget − saved) ÷ monthly saving⌉
The “two or three months’ salary” rule for engagement rings comes from De Beers advertising campaigns of the 1930s–1980s, not from any financial principle. Surveys by The Knot put the average engagement ring at roughly 5,000 to 5,500 in recent years, with lab-grown diamonds pushing prices down. A sounder rule is to spend what you can pay in cash by the proposal date without touching your emergency fund — this calculator shows both numbers side by side.
Worked example
On a 60,000 income the 2-month rule suggests a ring budget of 10,000.00 (16.67% of annual income). With 2,000 saved and 400 a month for 6 months you will have 4,400.00 in cash, a shortfall of 5,600.00. Paying the full 10,000 in cash would take 20 months of saving.
Sources: The Knot — Average engagement ring cost, according to real couples · Wikipedia — De Beers
Frequently asked questions
How much should I spend on an engagement ring?
There is no rule you must follow. Recent surveys put the average around 5,000 to 5,500, but the right amount is what you can pay in cash without debt or draining your emergency fund.
Where does the three-months-salary rule come from?
From De Beers diamond marketing: “one month’s salary” in the 1930s, two months in the 1980s and three months later. It was designed to sell diamonds, not to fit a budget.
Should I finance an engagement ring?
Avoid high-interest store cards and loans if you can. Zero-percent promotions can work only if you pay the full balance before the promotion ends; otherwise deferred interest can be charged retroactively.
How can I get more ring for the money?
Consider lab-grown diamonds or other stones, a weight just below popular sizes (0.9 instead of 1.0 ct), a simpler setting, or an heirloom or vintage piece.
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Educational estimate, not financial advice. Your income, prices, taxes and returns will differ — use it to plan, then check the numbers against your own bank statements and, for big decisions, a qualified adviser.