18K White Gold. The center fancy carved natural Aquamarine is encased in a camphor crystal. 

The Aquamarine measures 15mm X 13mm. 

Seven bezel set diamonds in the center and eight more gems on the sides total .33 carat of I1 clarity and IJ color. 

The top of the ring measures 23mm North-South. 

Size 6.5(can be resized). 

This piece weighs 11.3 grams.