2586- I'm pretty sure my birthstone is a seashell, a new addition to our girlie girl originals collection! This beach-inspired t-shirt proudly features a beach design and the phrase "I'm pretty sure my birthstone is a seashell." Made with a comfortable 100% preshrunk cotton, this short-sleeved tee is perfect for the whole family. Let your love for the beach shine with this tee! SHIRT COLOR: CORAL