4mm Half-Round Wedding Band in 14k Yellow Gold.  For a perfect, classic wedding band thats a great fit for any everyone, this polished 14k yellow gold wedding band is the one you need. Measuring just over 4mm wide and weighing 3.2 grams, this gold band can be worn comfortably daily and will be sure to never go out of style. This band is a lovely choice from our collection of Yellow Gold Wedding Bands.