Larimar, from the Dominican Republic - the cabochon is approximately 28.5 mm long x 20.5 mm wide, and is set in sterling silver. 
 
The pendant comes boxed with an 18" black satin cord. If you'd like a different length, please let us know; we have 16", 20", 22", & 24" cords available. 
 
The cabochon was made into a pendant in the US by Chris and Theresa of Seaside Stones.
 
Shipped via USPS