We offer Swarovski crystals by the each and by the tray...you can see those prices in our catalog.
For those who want to buy multiple trays, we also offer the additional "by the box" discount. Generally speaking, the smaller the crystal, the more you have to buy to get the box discount.
Our 8015 Star Octagon in 16mm size has an additional "box" discount when you purchase 20 trays.
On the other hand, the same crystal in the big 50mm size goes at a "box" discount when you buy just 2 trays.
And when you buy our popular 5301 crystal beads, you get the "box" discount when you purchase 10 gross (10 trays) of a single color & size.
Ask your salesperson for more information--We're always happy to give more specifics!