They have a 16mm diameter and are threaded with a petite 3D clam shell charm

This piece is made from sterling silver and can be adjusted easily by pulling the ends through the 6mm adjuster bead

With a small 2mm ball in a plain design

The crystals are each held in bezel settings which are secured at both sides to the sterling silver chain

9ct gold 6mm square clear cz crystal stud earrings Control Group They have a 16mm diameterMedium in size, sparkly and comfortable to wear these studs are a necessity for any jewellery collection. Made from 9ct yellow gold, they each display a square clear cubic zirconia crystal with a 6mm diameter. Measuring 1. 4cm from front to back, together as a pair, the earrings weigh just over 1 gram.