✦ A Grade
Description: No discolor, No fibre,No hole, No splits
✦ B Grade
Description: Slight discolor, Small Crack,No hole, No fibre
✦ C Grade
Description: Medium discolor, Slight pin,Bean hole, Light fibre
✦ D+ Grade
Description: Discolor, splits. Bean hole, Light fibre
✦ D Grade
Description: Discolor, splits. Egg size holes no more than 3
✦ E Grade
Description: Discolor, splits. Orange size holes no more than 3
✦ F Grade
Description: Discolor, splits. Large holes
By understanding these grade differences and viewing detailed images of each grade, you could make an informed decision.