Firstly, take into account the necklace size
In order to find the right one for you, think of what kind of necklace would perfectly express your style and personality. Ask yourself what you wish to convey by wearing it in the first place. That part is entirely up to you. Do you want a charming sexy collar, or a basic subtle chain?
Usually, bolder and daring people fancy shorter length necklaces, while medium-sized chains are a great fit for classic traditional styles. In turn, casual and hippie lovers usually go for longer necklaces, as they complement the boho style.
When in doubt, opt for a mid-sized necklace, as it can work as the perfect match to any kind of occasion. Then, the next thing you want to look for is the metal type, in order to find out which metal naturally offers the best hue that would be the perfect fit for your skin tone, enhancing your beauty even more.