Lapis Lazuli Rough Lot

We have lapis in five grades:
AAA Grade - Premium Quality Lapis Dark Blue color with pyrite and without calcite
Size: 5 grams to 1 kg pieces
(Price $200 to $800 per kg)
AA Grade - Fine Quality Lapis Dark Blue color with pyrite and without calcite
Size: 5 grams to 1 kg pieces
(Price $150 to $300 per kg)
A Grade - Best Quality Lapis Dark Blue color with pyrite and some calcite
Size: 50 grams to 5 kg pieces
(Price $65 to $100 per kg)
B Grade - Medium Quality Lapis Blue color with pyrite and some calcite outer and inner
Size: 100 grams to 15 kg pieces
(Price $35 to $65 per kg
C Grade - Low Quality Lapis Blue color with pyrite and a lot of calcite
Size: 500 grams to 50 kg pieces
(Price $5 to $15 per kg)