Valentine's Day is prime time for getting engaged. If you're considering a traditional proposal, don't arrive empty-handed. For centuries, the gift of a precious diamond has sealed a vow. ABCs of Buying a Diamond.
Also See:
Classic Engagement Rings You Can Buy Online
What is a Promise Ring?
Before You Buy Wedding Bands
Great tutorial for buying a diamond engagement ring! Don’t be like most couples though and propose on Valentine’s Day, be original and pick another day that has more meaning to you as a couple.