A method of constructing stained glass window systems is described. The stained glass window system includes a stained glass panel that includes a stained glass member joined to a seam member of a frame member with a joining material. A metal decorative silhouette is placed on one of the major surfaces of the stained glass panel and is joined thereto by applying a joining material to an aperture formed in the silhouette. In this manner, the silhouette obscures the seam member of the frame member. Optionally, a second silhouette may be joined to the opposing major face of the stained glass panel so that the design of the silhouette may be viewed from either side of the stained glass window. Additionally, the stained glass window system can be provided with at least one glass panel member, a peripheral frame member and peripheral insulation member.