Pound diamond dust in a mortar of hardened steel and then pour the powder evenly on the wheels used to grind the diamond stones to make a diamond cutting blade. Heat the cement to soften and then push the diamond stone to stick out onto the cement. Allow the cement some time to cool.
Make a V-shaped cut on the diamond using the diamond blade. Put a container beneath to collect the dust. Filter the diamond powders from the unwanted particles that might have dropped into the container using a sieve. Stick the pestle in an upright position on a block of lead. Use one hand to place the blunt edge of a steel ruler into the V-shaped cut. Use the other hand to strike the steel ruler using a hard object in order to split the stone. Remove the diamond stones that have been split from the cement.
Weigh the split diamond stones one at a time to ensure that very minimal weight has been lost. Standard weight loss should be approximately 2 percent. Examine carefully the stones of rough diamond in your hand and decide the way it should be shaped. Place the diamond on a sawing machine and lower it onto a revolving blade. As the revolving blade polishes the surface of the diamond, coat the edge of the blade with diamond powder repeatedly. The revolving blade should spin at about 8,500 RPM.
Remove the diamond stone from the sawing machine. Later, ensure you have a furnace filled with burning charcoal. Press the alloy comprising lead or tin into the cup to form of a cup-like base (acorn). Place the diamonds into the same cup to form a pointed top (apex). Plunge the cup into a container of water to cool it.
Fasten the cut diamonds in a wooden rest, and using the tips of your fingers keeping the diamond constantly wet with diamond dust mixed in olive oil. Regulate the fastener so the diamond just slightly touches the flying wheel. At this rate, the revolving wheels will make up approximately 2,000 revolutions per minute. When appropriately polished, the diamond will sparkle.