Something liberating and magical happens when one turns 18. It’s like you’re being given a key to the world. Coincidentally, we also have a pendant that can perfectly encapsulate this feeling. Here’s a key pendant with the number 18 on it. The number is crafted from 9 ct white gold and is encrusted with multiple cubic zirconia stones. It also comes with a 9 ct yellow gold bail. This pendant weighs 2.5 grams and measures 41mm x 19mm.