We have these silver beaded necklaces in 3 mm; 4 mm, 5 mm. We also have quite a collection of hand made Navajo pearls, some with gemstone or turquoise mixed in.
These are 4 mm and come in 5 different lengths available : 14", 16", 18", 20" and 24"
Longer lengths up to 72" available on request. Cecil@herdwear.net