Mounted
Diamonds
Good Backlighting
Leakage is harder
to see if light is blocked from entering
the back of a stone.
The more enclosed the setting the less
back light. Aim for good even light
from behind the stone, but beware of
direct glare; it will make facets look
pale and shiny.
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Using
the Ideal-Light and tweezers
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Try holding
rings up to ceiling lights with the tips of your fingers or tweezers. |
Settings
Light leakage often occurs in the upper girdle facets which may be covered over by the setting. If there is leakage in the centre then there is usually leakage in the outer facets.
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unset diamond |
set
diamond
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Dirt and Grime
Even though this diamond is not well cut, you can see that dirt gives a misleading impression of leakage. Clean first with very hot water, ammonia and detergent and a good scrub with a toothbrush.
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dirty diamond |
clean
diamond
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