Here is perhaps one of the original posts on this thread.
My friend Ho left Viet Nam in the early 70’s. He is truly a master
jeweler for what he did with what he had.
The currency there at the time was worth nothing. His customer would
come to him with a picture and a specific amount of gold.
His job was to make the piece of jewelry to the customers
satisfaction. The negotiation was how much the piece would weigh
after it was done.
His pay was the difference of the original weight vs. the finished
piece weight. Every speck of gold was very important.
He showed me that sawing upside down allowed him to collect every
speck of material form sawing and fabricating the piece. If you look
at your hand with the regular position of the saw, your hand if full
of material from sawing with the downward stroke.
A small leather apron was positioned beneath the bench pin to
collect his pay.
He even made his own solder in various temperatures from scratch.
Indeed a very skilled jeweler.
Asian gold jewelry is typically 22k or 24 karat because they needed
to travel with disposable income and pure gold in any shape was worth
more in any country.