Is this a wedding/engagement ring or not?

Question by Katie: Is this a marriage ceremony/engagement ring or not?
Is this a wedding ceremony or engagement ring or could it just be presented as an anniversary (unmarried) ring? If it is a wedding/engagement ring what would be an instance of an suitable anniversary ring?

http://www.kay.com/webapp/wcs/stores/servlet/product1%7C10101%7C10001%7C-1%7C990336606%7C15052%7C15052.15060


Greatest reply:

Remedy by paddle_qt
engagement

Know better? Depart your own solution in the comments!