The setting is Argentium Sterling Silver. The main stone type is magnesite and resembles turquoise. It is has little brown veins or matrix in an aqua background. The bottom has a real freshwater white stick pearl with little silver bead accents on the side. The overall pendant width is approx. 1-1/4". The overall pendant height is approx. 1-3/4". The thickness is approx. 6 mm. The bail opening size is approx. 5 mm. This is considered a medium-large pendant.