Cairn Sapphire and diamond ringCairn by Christine Sadler This is a handmade contemporary sapphire and diamond ring which is perfect to be worn as a right hand ring. The ring measures 12. 6mm wide at the front and tapers at the back to a solid band where the three strands of gold meet. The back of the ring is 4mm wide. The sapphire, which is a stunning shade of blue, measures 4. 5mm in diameter and the three brilliant cut diamonds are 3mm in diameter. The diamonds are G colour VS