13
items 
Six chains and small pendants listed at 37 to 42 cm before the extension; each is sold on its own, so pick one as the base













Four pendants and Y-chains listed at 45 to 87 cm; pick one to wear with your shorter necklace, and compare the listed lengths first









Fitting a pendant to a chain, how pendant length works, and Jewelers of America's necklace length names




