For pendants, it's great to have a small collection of chains and pearls/beads.
Having an omega, a collar, or choker; a slightly longer chain or beads; and a really longer chain or beads will allow you to place the pendant at the right spot for any given outfit.

Open necklines with pendants on omegas just POP!
Longer chains allow you to wear pendants over turtlenecks.

Experiment and play to find the right combinations for your wardrobe.
 Dress a pendant up with a chain or dress it down with a leather cord.
And don’t forget to try your pendants over your favorite strand of beads or pearls!

If you are purchasing a chain as a gift, I would suggest 16" for a petite woman or young girl or 18" for a more normal sized woman. These lengths should lay just under the nape of the neck. If you prefer to have it lower, go for the 20 to 24" length.

Note - If the only thing(s) on your US order are chains and converters, and you pay by credit card,
I will reduce the US shipping charge to $1.50 as I process the payment and ship via first class mail.
If you pay via PayPal, I can not adjust the charge and I will send via Priority Mail.