How to know if diamond necklace is real?

There are a few key things to look for when trying to determine if a diamond necklace is real or fake. First, examine the clarity of the diamonds. If they are blurry or have any inclusions, they are likely fake. Real diamonds are typically very clear. Second, look at the cut of the diamonds. If they are poorly cut, they are probably fake. Well-cut diamonds will have symmetry and be evenly proportioned. Third, consider the color of the diamonds. If they are yellowish or discolored, they are likely fake. Real diamonds are usually quite clear with a slightly blue tint. Finally, check the weight of the necklace. Fake diamonds tend to be much lighter than real ones. If the necklace feels very light, it is likely because the diamonds are fake.