About Vintaj Artisan Copper Vintaj Artisan Copper pieces feature a rich, distinctive darkened copper color similar to antiqued copper. The Vintaj process is eco-friendly, enhancing the natural beauty of the copper. These products are not antique plated or chemically treated. They are nickel and lead-free. Due to the careful, hand process used on each Vintaj piece, every finding has its own unique color and luster. It is the subtle differences in color that give these findings such depth and dimension.