Nut butter lovers hoping their Jif jar is worth its weight in gems will be disappointed to find that making diamonds from peanut butter isn’t a real moneymaker. The scientists who discovered that peanut butter under specific conditions could turn into a diamond aren’t about to quit their day job to become jewelers, but they hope their discovery will be useful in other ways.

According to BBC, humans still have a lot to learn about the composition of the Earth and how it was formed. Simulating the conditions inside the deep layers of the Earth’s mantle and studying the effects of those conditions on the carbon extracted from peanut butter can tell us a lot about how our planet came to be and continues to function. Marvelopolis explains that artificial diamonds used in jewelry are already produced with more efficient materials than peanut butter, but the automotive and mining industries use diamonds to cut and polish materials because of their strength and could benefit from another resource capable of producing the precious stones.

Unless you can mimic the heat and pressure of the Earth’s mantle in your kitchen, your favorite peanut butter isn’t going to turn into diamonds anytime soon. But knowing that diamonds can be made from peanut butter might make you appreciate that PBJ sandwich a little more.