Diamonds: How do I use
a 10x jewelers' loupe to look at a diamond?
a 10x loupe when you buy a diamond, especially if you have it
laser inscribed. Looking at a diamond under magnification can
be exciting. You can easily use a loupe to examine your diamond
by following the simple instructions below. We show the technique
without tweezers because of the possible damage from using tweezers
You might want to print
these instructions to keep them next to your examination area.
- Set up the examination
Find a good
place in your home or office with plenty of light. The best light
is color corrected to match natural sunlight. Though nothing
replaces a professional diamond lamp, people often find that
a desk lamp is good enough for home use. Lay out a small, clean
towel under your elbows to provide a soft landing place and stop
the diamond from rolling in case you drop it.
- Open the loupe
Open the loupe
(the example below is not quite fully open) until it is straight
up, as in the photo at top. Pick up the loupe in your right hand
(left if left-handed) with your finger through the opening as
a brace. This will make it easy to hold the loupe steady and
move it subtly to focus.
- Hold the diamond
in your fingers
Use your thumb
and forefinger of your left hand (right if left handed) to pick
up the diamond around the outer perimeter (called the girdle),
avoiding any fingerprints on the flat surfaces (facets). Of course,
diamond dealers use special tweezers to examine diamonds to avoid
fingerprints, but tweezers can damage a diamond if used poorly.
For a novice, using your fingers will protect the "girdle"
-- the delicate edge around the circumference of the diamond.
- Brace your hands
Slowly put the
loupe up to your eye, very close. Steady your loupe hand against
your cheek. Then hold up the diamond until it moves into focus.
Copy the way our founder does it in the photo above.
- Focus by moving
Focus by moving
the diamond (not the loupe) with your fingers (not your hands).
Keep your hands braced against each other. A pro will leave both
eyes open, but we find that most first-timers like to close the
other eye to ignore distractions.
- Rotate for different
Rotate the diamond
around to view it from different angles and see every part of
the stone. Definitely look at the diamond from the bottom as
Keywords: loupe, loop,
loup, 10x loupe, how to use a loupe