This Celtic knot moon necklace symbolizes love and eternity, making it a perfect sweet 16 birthday gift for her, marking this important life milestone. Crafted from hypoallergenic 925 sterling silver with a sparkling heart crystal, it is elegant, delicate, nickel-free, lead-free, and cadmium-free. The necklace features a 45 cm chain plus a 5 cm extender, fitting practically anyone, with a pendant size of 22 mm. Presented in a beautiful jewelry gift box, it's an ideal gift for birthdays, Christmas, Mother's Day, graduation, or anniversaries for your lady, wife, lover, best friend, or sister, showing you love them forever. Purchase worry-free with quality products and excellent customer service; contact us with any issues.