I call this a honeycomb pattern because the pendant center, the mother of pearl shell, is comprised of many small pieces of hexagonally shaped mother of pearl fitted together and laid upon a large oval piece of mother of pearl shell. This is then sealed beneath a clear plastic of some sort. Having three layers, I guess you could call this a triplet construction. If you look closely you can see a tiny bubble near the center created during the making of the brooch. Bubble is not near the surface which is very smooth.
The shell pieces are light in color having the subtlest shades of blues, pinks and greens when viewed from different angles. Viewed form the back, you can see a lovely wavy pattern with peeks of color. Shell is mounted within a bezel set sterling silver ornate openwork foliate frame having a few scooped out circles at each direction- north, south, east and west.
Not only is this beautiful, but it is a very sturdily constructed substantial piece weighing 24.1 grams.
Measures 3” long including the bale. Its width is 1-7/8”. Shell is approximately 1-9/16” x 1-3/8”. Back of bale is marked 925. My photos did not quite capture this the way I had intended. The center is creamy off white.