Asking her would spoil your surprise. So, you have to do some guessing to know which gemstone she would prefer. Women dream of rubies. Passionate women prefer this red stone. They find in its dark, reddish color a reflection of their strong feelings.
Rubies make a woman irresistibly attractive.
If you were lucky enough to find a real ruby, then it would be a marvelous present. It is said that if a real ruby touches the body, the sunlight interacts with it to give the one wearing it more energy and excitement. Rubies are the most expensive gem, and are hard to find. Emeralds are recommended for delicate girls. Dreamy and imaginative women love this green gemstone.