Look at the purity of swan swarovski necklace. Diamonds are very transparent, with no bubbles and gelatinous substances inside and no flaws. However, the transparency of diamonds on fake necklaces will be poor, and some of them are still flawed.

Swan Swarovski's diamonds have been carefully cut in several stages, with good reflectivity and more dazzling appearance. However, the diamonds on the fake necklace are dark, not genuine. Look at the steel seal. The real Swan Swarovski has a steel seal on the clasp of the necklace, and the steel seal handwriting is clear and obvious, while the fake handwriting is vague and rough.