We spend a lot of time looking at celebrity engagement rings, but how closely are you paying attention? Here are 15 engagement rings that have made us swoon over the years—some brand-new, some way old-school. How many can you ID?
http://www.glamour.com/about/engagement-rings
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. 
11.
12. 
13. 
14.
15. 
Come back tomorrow to see how many you guessed right.
If anyone can name all 15, we’ll be seriously impressed.