The JW38-607 Platinum and 18Kt Gold Comfort Fit Wedding Ring is made cutting a channel on an 18Kt yellow gold ring that would be the base of this wedding band. A pure platinum band of larger diameter is then fit on the channel of the gold ring. This wedding band design is available in 6 to 8 millimeters. Free engraving inside the wedding ring would fit up to 24 characters including spaces.