Our rondelle u necklaces feature stunning iolite or Australian opal rondelle’s hand wrapped with 14k gold filled wire onto a mixed metal U. The necklace is completed with oxidized sterling silver chain and 14k gold filled findings. Iolite is known for it’s clear translucent blue coloring. Australian opal is known for it’s rich color variations. The necklace features 1″ of extender chain so that it can be worn at varying lengths from 16.5″-17.5″.