It is rare that gemstones will exhibit only one pure color. The fact is, most of them exhibit hues (in a very small variation) of other colors as well. For example, pink sapphires are never only pink; they have a purplish tint to them. Rubies have slight orange or purple in them while blue sapphires have a tinge of green in them.
Tone is the depth of color with its parameters varying from colorless to black. They can be classified as:
The best gemstones to opt for are the ones that fall between the medium-light and the medium-dark range.
Also referred to as color purity, saturation is the degree to which gemstones are free of unwanted dark hues (brown and gray). Strongly saturated stones are those which display little gray or brown hues in them, and these are the ones that are the most desired by collectors.
Even a layman knows that the bigger a gemstone is, the more expensive it is. Bigger stones without any flaws or visible imperfections are not easy to find naturally in nature. This is why they’re always high in demand, but low in supply.
Sometimes, it just happens that a large gemstone is too huge in size to be used practically in a jewelry item. What happens next is that the larger gemstone has to be cut and resized to smaller pieces so that it may be used properly.
The preference of the gemstone shape is actually one’s personal preference. Some might like their stones rectangular, some oval, some circular, and some heart shaped.
However, it is almost next to impossible to find any stone occurring naturally to be in perfect shape – it will always have rough edges that need to be sharpened and shaped so that it becomes more appealing to look at.
While recognizing and understanding the quality in cuts, one has to keep in mind several points.
The process of cutting and polishing gems is called lapidary. Gemstones that haven’t been cut at great length and polished thoroughly are called rough.
Often, new buyers are confused as to what qualities they should look for in the cut of a stone and here are a few tips to help you out:
- You have to understand what a well cut gemstone will result in. It highlights the color of the stone and gives an impression that there has been a reduction in its inclusions.
- A well cut gemstone will always be symmetrical and proportionate. Make sure that all the facets of the stone are symmetrical, because an asymmetrical cut automatically lowers the value of a gemstone. The scientific reason behind proportionate cuts and smooth polish in a stone is that the polished stone is now capable of reflecting light across the stone’s surface.
- Larger gemstones (the ones that are not easily available) are more often than not cut in smaller pieces. Why? Sometimes it happens that a large gemstone is too huge in size to be used practically in any jewelry item. In such cases, color shouldn’t be your top priority.
- Gemstones that display heavily saturated colors are better suited for shallow cuts. This is because such cuts allow more light to penetrate the gemstone, which in turn gives your stone more shine. Conversely, deeper cuts suit lesser saturated gems.