Since these are hand crafted products, the exact color of glass pieces may vary. Colors of the glass will appear darker and less vibrant when not illuminated. Handmade glass will vary from one piece to the other; glass made at different times will also vary. Light bulbs used in lamps or ambient lighting may affect the appearance of the products. Stained glass product has been protected with mineral oil as part of the finishing process. Please use a soft dry cloth to remove any excess oil.