This page is about recutting and repairing stones.
Badly worn gems like this Amethest are best recut completely.
This stone finished almost exactly the same diameter and still
fit the ring it came out of
Often a stone can be improved with only partial recutting.
This emerald had been cut overseas with a big belly on the back
To save extra weight. This left a big window in the center where
the facets are well below critical angle. Recutting the back only
to proper angles improved the apperance greatly with no loss in
diameter but a weight loss from .92 ct to .80 ct.