A bright clean green sapphire, set simply in an 18ct yellow gold bezel set mount. The gallery to the front and back are open to allow light to pass into the sapphire from underneath, with a subtle cross-over underbezel. The sapphire measures 5mm in diameter. 
This ring can be sized to any finger size, if you're unsure of the size please contact me and I'll send you a complimentary ring gauge.