The length of each of our necklaces is specified in the Details tab and indicates the total length, including the chain and pendant. Melanie Casey necklaces that are 18" will have a 16" and 17" stationed jump ring that gives you the option to wear it at the length that works for you. Our necklaces have a lobster clasp and a signature lab-grown diamond drop at the end of the chain. Curated Artist necklace length and specifications can be found under Details. To determine how the necklace will fit, we suggest cutting a string to the length that’s specified for the piece you’re interested in and tying it around your neck to see how the length looks on you.