This panel has a standard Celtic Heart Knot intertwined with an Infinity Knot.
The knot segments are Spectrum Cathedral Emerald Green glass. The panel has a double border of Spectrum Cobalt Blue WaterGlass® and then Spectrum Emerald Green WaterGlass®. The interior glass within the knot segments and from the knot segments to the blue border is Spectrum Clear Artique® glass. The fine surface texture of the Artique® glass is a little overstated in this image.
The panel is set into an American Cherry hardwood frame that appears dark in the photo on the left. The additional small photo shows a more natural view of the cherry wood in a corner of the frame.