Where Did the "Two Months' Salary" Rule Come From?
The idea that you should spend two months of your salary on an engagement ring did not come from tradition, romance, or any cultural custom. It came from a De Beers advertising campaign in the mid-twentieth century. The original suggestion was actually one month's salary, later revised upward to two months as part of a deliberate marketing effort to sell more diamonds. At one point, the campaign even pushed the figure to three months in certain markets.
This is important context because a lot of people carry this number in their heads as though it carries some deeper meaning. It does not. It was a sales strategy, and it was extraordinarily effective at shaping consumer expectations for decades. The good news is that modern couples are increasingly aware of this history and are making engagement ring decisions based on their own values rather than a marketing slogan from seventy years ago.
There is no financial rule, no cultural requirement, and no romantic tradition that obligates you to spend any specific percentage of your income on an engagement ring. The only number that matters is the one that works for your life.