1. The gap can be improved or not we don’t know yet, because we have not measure this particular stone against the technical drawing of this stone to see what range is this particular stone stand in the dimensional tolerance range. We will measure the physical stone and the metal part, then we can have a better idea on the improvement.
**Please note** CM has been informed about the possible gap, and it is also mentioned in PLM.
2. Depending a lot on the 1st question, if the stone dimension is at the low end of the tolerance, then adding glue there between the stone and the metal part or not may not have any effect on quality. Because the main strength may come from the joint between the 2 metal parts.