So we are now in the [? prime ?] sessions
of the diamond factory.
So now she's doing the [? prime. ?]
And this is the branch, and here is
the wheel of her diamond powder.
So this is what we call a scaife.
And then we use the electroplating
to stick the diamond powder onto the scaife.
And what she'll need to do, is to look at each facet
very carefully, and do it one by one.
So the tooth has to be very accurate.
So every day they have to check their tooth,
whether the angle of it is correct or not,
because diamond polishing is a very fine polishing.
It's still plenty of ways ways to making errors.
What we'll be going for is [? chipping ?] accidents
or a [INAUDIBLE] mark, and the degrees.
We need to be always accurate.
We have scaife in the middle.
And then the worker is holding what we call a tang.
So the diamond actually is on top of the tang.
And then you can see it's a rotating wheel in the middle.
So that wheel has 32 clicks.
So the diamond actually is divided
into perfectly 32 equal parts.
So once you finish one facet, what you do
is to turn to another click and do another facet.
And you can see sometimes he's rotating a button on the tang.
And that one is to fine-tune, because the diamond is not
perfect.
It's not like an iPhone, by machinery
you can do all that stuff.
So each diamond has its own characteristics,
with different angles, and a different depth.
So we cannot use the same tools to do every stone.
So every time she's through one facet,
she may need to use the fine-tune button
to do some touch up of the diamond.
We do the diamond polishing of the crown.
What she'll have to do first is to make a big facet
on the surface.
So when it's close to the end, so it's close to the finish,
she will just stop polishing and pick it up
to look whether it's finishing or not.
If it's close to the end, she'll start
doing the polishing of the surface.
Because you can see the scaife base, a lot of INAUDIBLE on it.
So actually, this is the uneven surface.
So if you just crash the stone onto the scaife,
definitely the stone will leave some,
what we call polishing lines on the diamond.
And it will affect the creating of the cutting.
So the polish, the finishing, will not be so good.
So once the stone is close to finished,
we'll do the polishing, what we call
the shooting of the diamond.
The speed are polishing the stone always
depends on the shape.
It's not the shape, the molder of the stone.
If it's a sawable stone, and it's to recover faster.
If it's unmakeable, and sometimes
if there's a surface graining on the stone,
it would take a much longer time to do the polishing.
This part is the pavilion polishings.
So this gentleman is polishing the pavilion.
You can see the diamond on top of the polishing tang.
They call this, too, a tang.
And every time you have to look at the edge of the facet
very carefully.
When it's close to the facet, he has
to do the polishing, what we call
the shooting of the diamond.
So the polishing line is not left on the diamond
after the polishings.
They're also going to look at the wheels.
The wheels have a lot of INAUDIBLE on it.
The INAUDIBLE actually means the wheels is not so cracked,
and it's uneven.
So if you keep on pressing on the scaife,
you will let the polishing lines.
So after doing one facet, he's doing another facet.
So first of all he has to press the stone on the scaife,
and check the height, and also the size of the facet,
whether it's the same, to do the next one in a later group.
When it's close to finished, they
have to do the shooting again.