The Sweet 15 Años - Quinceanera necklace is another stunning gift idea for the birthday girl. The heart is made from pave set cubic zirconia stones, with a pretty butterfly in silver inset near the bottom. 925 Sterling Silver letters (15 Años) are at the center of the heart, giving reason to celebrate. Made in the U.S.A. at our factory in Los Angeles, this handmade silver necklace is given a polish finish before being carefully packaged for shipping.