This is my newest design inspired by lava embedded with the shape of coral from thousands of years ago.  I was on a hike in Maui and came upon this sight and it was so unusual and beautiful.
The large size is shown here and measures 2  3/4" long and 1 3/4" at it's widest. This comes on a 20" hammered gold filled chain and if you would like a different length please message me after ordering. 
You may also choose medium size when adding to the cart 2" long and 1 1/4" at it's widest.  Size comparison shown in photo.  
 
*This is also available in sterling silver which you may choose when adding to the cart.