Oldies but Goodies - Diamonds

This challenge is not just about diamonds. Not many of us work with diamonds, and not even all of us like diamonds.
So this Jewelry Artisans Community Oldies but Goodies Challenge gives you diamonds, but also quartz, clear crystals or sparkly glass. They can be just as good friends as diamonds. Really.

1 and 7 Cat's Wire
2 The Crafty Chimp
3 and 5 MC Stoneworks
4 and 6 Violetmoon's Corner