You need to know

Differences
1, facets ( ours are with average cuts, other bad quality is with big or small cuts. )
2, silver back ( ours are flat and smooth, other bad quality is easy to drop off. )
3, brightness ( ours stones looks very shiny, other bad quality is harper.)
4, chipped stones ( ours are quality controled, other bad quality are with many chipped.)
5, quantity(ours are 1440pcs, other bad quality are only 1200-1300pcs)
6, about mix colors (ours is 1440pcs, some suppliers only offer 1000 pcs /bag)
7, we won't mix bad quality and good quality together to make lower cost like other supplier.
8, we can make the stones much better or reduce cost at your request with your bulk quantity .
You will get what you paid for !