How points are green gems?
The Emerald cut has 58 facets (25 crown, 8 girdle and 25
pavilion). So if you take 58x2=116 points you see at the corners of
every flat facet. The most common and usually most valuable green
stone is the Columbian Emerald which is usually ground/polished to
the emerald style cut.
This is not what points mean but what I think was asked.
Points refer to carat weight with one carat 1.00 equalling 100
points so if it says it has 50 points of diamond on the ring you
divide 50/100 or .5 carat of diamonds. Always divide points by 100
to get true carat weight. These are usually the accent stones, not
the main stone, which is a solitaire and has the most value. The
accent stones shine through the solitaire giving it more
flash/brilliance and of course some on there own.
The crystal structure of a true Columbian Emerald also gives it
allot of extra brilliance. In a picture this looks like defects but
if you look closely you see all the facets are still flat in a
flawless Columbian. It is when you have eye visible black carbon,
facet chips or crack that you have defects. Everyone knowledgeable
wants the crystal for the brilliance.