What ring size is size I?

A ring size I corresponds to an inside diameter of 0.59 inches or 15.10 millimeters.

Here's a breakdown of the ring size information:

	Inside Diameter
Inches	MM	UK Size
0.58	14.88	H
0.59	15.10	I
0.60	15.49	J

This information is based on the Monica Vinader ring size guide.