Emory University researchers surveyed over 3,100 people who were or had been married, and found that spending more on the engagement ring/wedding cor-related with higher divorce rates.

Specifically, people who spent $2,000 to $4,000 on rings were 1.3 times more likely to be divorced than those who spent between $500 and $2,000.

Also, people whose weddings cost over $20,000 were 1.6 times more likely to divorce than those who spent $5,000 to $10,000. The average cost is around $30,000.

The researchers think that spending a lot on a ring or wedding — without being able to really afford it — causes financial stress. This then strains the marriage and leads to divorce.

This runs counter to the wedding industry, which generally connects expensive rings and weddings with happier marriages.