These 3mm serrated edge sterling silver bezel cups provide a way to set your cabochons with a neat and professional finish.Simply solder to your design and rub the cup bezel over the stone using a bezel rocker or burnisher until your stone is held securely in placeCup heights approximately: 3mm =1.8mm 4mm = 2.2mm 5mm = 2.2mm 6mm = 2.44mm 8mm = 2.69mm 8x6mm = 1.83mm 10x8mm = 2.09mm Available in round and oval sizes Sold individually Suitable for cabochon stones only Due to the manufacturing process (die-struck), the bezel cups become work-hardened so will require annealing (the process of softening metal by heating with a gas torch) prior to setting. As they are designed for soldering onto your design this will most likely happen during the soldering process so will not require additional annealing As commercially cut stones have a size tolerance you may need to work on these bezel cups prior to fitting your desired stones