How to choose a blue diamond

Blue diamonds are very rare and boast the sheer brilliance of blue color. Because of their elegance and scarcity, their prices are usually high and sticky. Then how to choose blue diamonds which worth your investment? There are some tips on it.
1. Base your budget on carat weight (size), then clarity and setting. If you have limited spending, you can choose a small size of a blue diamond.
2. Purchase it in a reputable store or vendor. You should make sure what you have purchased is real. Otherwise you are a victim of a fake blue diamond.
3. Examine a diamond for color. Choose a "fancy" blue that expresses consistent color and brilliance across its full surface, unmarred by dark pockets.
4. Ask your dealer to display the diamond in different light settings. For jewelry or stones that you plan to set, use a mirror and view them against your skin coloring.
5. Compare the shapes of different cuts of blue diamonds to see which will best suit your purpose. Round or square facet cuts reflect light much differently than the rectangular emerald cuts.
6. Compare your favorite loose stones or jewelry pieces and let clarity be the deciding factor. It is the clear, blue brilliance of a diamond that most determines its value.
Overall blue diamonds came traditionally from India and today they can be purchased in various countries with different styles and setting. Blue diamonds are favored by most people owing to its brilliant blue color and rareness.