The first step in the gemstone cutting process will be to preform the rough rhodolite into a shape before it is faceted. Use a 1200 lap disc on your faceting machine to cut the circumference girdle of the gem. Although the stone is a freeform the techniques are the same as faceting any other stone. The emerald cut comprises 58 facets and truncated corners on a rectangular step cut stone. The three most basic cutting styles are brilliant step and mixed.
Grind the outlines of the stone to shape the girdle. While some cut names may describe the face up shape of the finished gem others refer to the shape and arrangement of the gem s facets these cuts are also known as gem cutting styles. Much of gemstone cutting requires the same process for every stone which is what i considered to establish my per stone flat rate for up to the first five carats of finished gemstone weight. Cutting a fantasy gemstone pavilion. Start with the pavilion.
Stones most commonly used for inlay are strongly colored opaque stones such as black onyx lapis lazuli turquoise tigereye etc. This picture highlights an inclusion that is the yellowish spot in the middle of the gemstone. Set the angle to 90 degrees so you can make symmetrical cuts. The first part of the fantasy cutting process is to cut a finished stone. Here i am grinding a basic shape into the stone on a 260 grit diamond cutting lap on high speed.
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First introductory video by steve moriarty showing you how to precision facet a gemstone. The second part is to carve it. As stones get larger it does take more time and will cost more. This inclusion will be ground out during the preforming process. If a finished stone weighs 5 carats or less this is the price for faceting that stone.Take your chisel and hold it in a vertical position on the stone with the blade of the chisel on the line you wish to cut. Don t lock the index wheel on the machine so you can move it freely and have more control over cutting. Typically freeforms are used. Put on eye protection before you start using the hammer and chisel which can send sharp chips of stone flying. Use your chisel and sledgehammer to begin the cut on the face side.
The clarity of an emerald cut diamond is very important because of its flat pavilion which can magnify the stone s imperfections. The clarity of an emerald cut diamond is very important because of its flat pavilion which can magnify the stone s imperfections. Take your chisel and hold it in a vertical position on the stone with the blade of the chisel on the line you wish to cut. First introductory video by steve moriarty showing you how to precision facet a gemstone. Stones most commonly used for inlay are strongly colored opaque stones such as black onyx lapis lazuli turquoise tigereye etc.
Use your chisel and sledgehammer to begin the cut on the face side. Grind the outlines of the stone to shape the girdle. The first step in the gemstone cutting process will be to preform the rough rhodolite into a shape before it is faceted.
