Large purple amethyst cake sparks wedding cake trend. Three different angles of Rachel Teufel's amethyst geode cake to show the depth of the design. Ali N Garrett Photography/Intricate Icings Cake ...

Beyoncé rang in her 36th birthday, known to the rest of us mere mortals as "Bey Day," with a geode cake fit for a queen. The gem-inspired cake—that began gaining popularity in 2016 for its ...