This amazing genuine blue Tanzanite crystal from Tanzania with cubic zirconia stones is set in sterling silver with a Rhodium coating for additional strength and is scratch resistant - in size 7 (size N) 17.2mm and will be packaged in a ring jewellery box
To measure ring size, get a piece of string or cut a thin piece of paper and wrap around the finger you are measuring for circumference.
To calculate the diameter (inside of the ring going across) - divide the circumference by 3.14
