How do you know it is real Swarovski Crystal?

I always wonder that the crystals that I ordered are real from Austria. All sellers on e-Bay claim that their crystals are real from Austria, but after I order as the whole factory package I found out that some of the crystals from some e-Bay sellers were glass beads from China.

I have learned some tips from one of the Swarovski Distributers as follow:

·  The Swarovski crystal will be perfectly cut edges. All crystals will be uniformed and all corners are all meet perfectly. No bubbles or cracks within the crystals even you look with your naked eyes. The size of each crystal is perfectly even.

·  Because they use good quality of glasses, so it gives clarity and luster like no other.

·  Swarovski crystal beads are made of one of the highest lead content of any crystal bead made, more than 31% lead, so they will weigh about 1/4 gram for a 4mm bicone. Glass beads without the lead content will weigh much less and might suggest a counterfeit. Swarovski crystal has a shine and luster like no other and the color should be consistent.

·  The company Swarovski does not sell defective, cracked, seconds or holes that are not completely drilled through. When you read this as a description for Swarovski crystal beads that should be a warning to you that it is not genuine. Swarovski will sell only the finest high quality new crystal beads Made in Austria.