There are 4 kinds of pearls : Akoya, Tahitian, South Sea, and freshwater. The last 2, AAA and AAA+ pearls, have the highest quality and they're most valuable. The quality and cost of pearls are based on 6 factors : luster, nacre, surface, color, shape, size and matching. Nacre : Most purchasers of pearl jewellery pay most attention to the pearls ' nacre thickness. You should search for pearls with nacre thickness over zero. The choice to be married is taken today solely by young males and females themselves who are governed by their mutual feeling above all. An engagement is the event of pronouncing the call to be married by the fiances. The engagement performs 2 major functions : to make public the call of a young couple to be married and to set the time required for the preparing of the marriage. Here is a nice page about discount eiffel tower vases. Sometimes one month or a month and a half is permitted for that.