A lyrical Easter egg may have predicted her marquise diamond ring, which one jewelry designer calls “the hot stone of the moment.”

Oval diamonds have dominated the engagement ring industry for years now, but Selena Gomez’s new stone seems to confirm that the winds are changing. The choice of a marquise diamond indicates a newfound swing towards unconventional centre-stone shapes.

Selena Gomez and Benny Blanco are officially engaged. Yesterday (December 11), the 36-year-old music producer proposed to the 32-year-old Rare Beauty founder with a Taco Bell picnic and a special engagement ring.