This unique pendant is a sterling silver Conch with a 10 mm Aventurine sphere. The Conch measure 1 1/4 inches (30 mm) from top to bottom and 1/2 inch (12 mm) from side to side. This is medium sized pendant but very light weighing 3.4 grams. These shells are beautiful and geometrically unique mollusk shells and I have tried to capture their symmetry and detail with this design. Aventurine is geologically similar to green jade and is showcased almost completely around by bthis design. 30 inch black satin cord included. Thank you.