Jewelry by Johan offers wedding bands and engagement rings in both traditional and alternative metals/materials, including platinum, gold, tungsten and jewelry grade ceramic (non-metal, hypoallergenic). You can customize designs to feature your preferred metal in nearly any ring. Costs may go up or down depending on your changes (e.g. titanium to platinum will increase the price). A gold color can be changed in any item and the cost stays the same within the same karat weight (e.g. 14k white gold to 14k rose gold).