1. Check the color
Yellow Sapphires come in a range of shades, from light yellow to deep golden yellow. A natural and genuine Yellow Sapphire will have a uniform color, without any patches or spots. It should also have a bright and lively appearance. If the Yellow Sapphire has a dull or faded appearance, it may be a low-quality stone or a synthetic one.
2. Look for inclusions
Inclusions are natural imperfections that are present in gemstones. In Yellow Sapphires, inclusions are usually small, needle-like formations or silk-like lines. These are not visible to the naked eye but can be observed under a magnifying glass. Inclusions in a Yellow Sapphire may indicate that it is natural and genuine.
3. Check for heat treatment
It is common for gemstones to undergo heat treatment to enhance their color and clarity. Yellow Sapphires are no exception. However, if the heat treatment is done improperly or excessively, it can affect the gemstone’s durability and value. To check if a Yellow Sapphire has undergone heat treatment, check for any fractures or color changes. A stone with excessive heat treatment will have a burnt appearance or may even appear black.
4. Observe the cut
The cut of a gemstone is important as it affects its brilliance and overall appeal. A well-cut Yellow Sapphire will have good symmetry, excellent proportions, and proper facet angles. It should also have a smooth surface and no rough edges. A poorly cut Yellow Sapphire will have dull or uneven facets and may appear lifeless. It is best to avoid such stones.
5. Test its hardness
Yellow Sapphires are part of the corundum mineral family, which is one of the hardest minerals known to man. They have a hardness of 9 on the Mohs scale, which means they are extremely durable and resistant to scratches. To test the hardness of a Yellow Sapphire, you can use a Mohs’ scale kit, which is available at most gemstone stores. If the gemstone scratches easily or has a hardness rating lower than 9, it may not be a genuine Yellow Sapphire.
In conclusion, a Yellow Sapphire is a precious gemstone that holds immense value and significance. Whether you are buying it as an investment or for personal use, it is important to ensure that the Yellow Sapphire you have is genuine and of good quality. By following the above-mentioned tips, you can easily check a Yellow Sapphire and make an informed purchase decision.