She Complains About Her Ring
The wedding ring symbolizes the two of you bonded together for the rest of your lives. It's placed on the ring finger of our left hand because it was believed that the “love vein” found there runs straight to your heart. That's pretty romantic...
So if she moans that the diamond isn't big enough or there aren't enough rocks, take note. A marriage is a statement of love and so much more than mere jewelry. The very fact that you're giving her the wedding ring should be enough.
If she continues to complain about her ring, gently remind her that originally engagement “rings” were merely bands of grass tied around the bride-to-be's wrist and ankle. If she still whines, do you really want to waste your life with such a shallow gold digger?
Don't Get Caught With Cold Feet
If you notice any of the above tell-tale signs in your future bride-to-be, then maybe you should consider calling off the wedding. However, the very fact that you're looking for a reason in the first place is worrying in itself and calls for careful thought and possible marriage reconsideration. Then again, it could just be cold feet.
Your wedding day is one of the most important days of your life and you don't want to make your day in divorce court the second.