Re-cuts and Repairs (16.18)
If you are serious about buying diamonds for profit, then broken, old cuts, and burned diamonds will come into play. A damaged polished stone would still be easier to evaluate than a piece of rough. The major advantage of buying a damaged finished diamond or
old cut (over rough) is the greater visibility of color and clarity. Since finished stones don’t have the rough diamond skin (besides naturals), a clear view is possible.