Ring Resizing requires the base of the ring to be opened and either a new piece of Gold or Platinum added to make the ring bigger or soldered back to make the ring smaller. The diamond or gemstone is also checked to ensure it is secure in the setting. Ring resizing is a complex task; we are best qualified to complete this. Allow a minimum of $100 for a basic resize and slightly more if additional Gold or Platinum is required. Allow 5-10 business days and sometimes quicker by arrangement.