Sterling Silver plain band ring with 4mm pale blue aquamarine.  Available in size 8.5. The band width is 1/4" wide. These narrow band rings make great friendship or inexpensize engagement rings.
 
What is your ring size? Follow these simple instructions to figure out your ring size...
How to measure:
Cut a string that is about 6 inches long.
Fold the string around the base of the finger, just below the knuckle.
Mark where the string ends with the pen.
Place the measured string on the ruler with the area marked on your right.
The number closest to the pen mark is the circumference of the ring in millimeters.