This is a size 9.5 ring (US/Canadian size). This is a unique ring that will be the one shipped.

Oval blue lace agate gemstone ring set in 92.5 sterling silver

Dimensions with silver about 27 mm X 17 mm

Weight: 7.07 grams

Code: 515

RING SIZE CONVERSION CHART LINK:
http://findmyringsize.com/en/conversiontable.aspx

Note that you can find other charts on google