Estimating Weight, Recutting, and Polishing (Chapter 17, Key Terms & Key Concepts) Flashcards
Diamonds that can be
repolished to improve their clarity to a VVS1
or VVS2 grade.
Improvables
Diamonds that can be repolished
to improve their clarity to an Internally
Flawless grade.
Potentials
Repairing damage or refashioning a polished diamond to improve its
clarity, proportions, or color, or to modernize
an old-style cut.
Recutting
Refinishing a polished diamond
to correct minor faults in its clarity or finish.
Repolishing
A mounting almost always limits your ability to
assess a diamond.
Key Concept
A grader can use reflections to see inclusions
hidden by prongs.
Key Concept
Practice is the key to accurate weight estimation.
Key Concept
Proportion variations like thick girdles can affect
the accuracy of estimated weights.
Key Concept
The weight correction factors for fancy cuts allow
for variations that aren’t seen in rounds.
Key Concept
Diamonds in jewelry are vulnerable to damage.
Key Concept
The ultimate recutting consideration is the value of
the finished diamond.
Key Concept
Today, there’s equal interest in maintaining or
creating old-style cuts and in recutting them as
modern brilliants.
Key Concept
A diamond’s original cutting style largely governs
its style when recut.
Key Concept
Before recutting a diamond for sale, you should
know what the market demand for the new shape
will be.
Key Concept
Cutters usually work with angles rather than
percentages, so that’s what jewelers should provide.
Key Concept
