I’m sure you’ve heard that diamonds are a girls best friend. What you might now know is that the style of ring you set that diamond in makes a huge difference. Engagement rings, promise rings and wedding rings alike are meant to last forever, so arming yourself with tools to make the right decision is imperative. Check out the guidelines you’ll want to know below. Get your price right. If you spend too little on an engagement ring, she could be disappointed. If you spend too much, you may not be able to take her out to dinner for months.…