Sapphire is a traditional precious gemstone. If you want to choose satisfactory sapphire jewelry, you need to pay attention to the quality of the gemstone in addition to the style. So how should fans identify the grade of sapphire? WILLS JEWELLERY has developed a set of gem evaluations so that everyone can more specifically understand the characteristics of the sapphires they choose.
WILLS JEWELLERY gemstone review
Rating notes
Cutting : The cutting and polishing process used by craftsmen. The vast majority of gemstone cuts are composite, meaning they involve more than one cutting technique. A common one is a brilliant-cut crown paired with a stepped-cut pavilion , which perfectly displays the inherent color of the gemstone.
Origin : The physical characteristics of the origin of a gemstone. Gemstones from different origins have unique local geographical structures and characteristics. Therefore, through the characterization of gemstones, the characteristics of the origin of the gemstone can be summarized.
Color Saturation : The saturation of the natural color of a gemstone. Even the same color can have different color saturations (light to dark), giving gemstones a fascinating variety.
Color Tone : The inherent natural color category of gemstones, which is closely related to the place of origin and is also one of the characteristics of the place of origin.
Zoning : Zoning is an important element that allows gemstones to show their inherent color. If you look closely, they look like color stripes. The color bands of most sapphires are not uniformly distributed, so the presence of color bands can be observed from certain angles. The less obvious the color band, the higher the gem value.
Transparency : Affected by the density and distribution of inclusions and the quality of the gemstone, gemstones with higher transparency will show more fire. However, certain colors of sapphire (such as cornflower blue) have specific inclusions that give the sapphire its unique color.
Heating Optimization Thermal Enhancement : The traditional gem physical optimization process is to enhance the original color of the gem, making its color more impressive, thereby increasing its value; naked eye observation cannot distinguish whether the gem has been heated. All gemstones that have been heated and optimized are natural , and professional gemstone laboratories will also give gemstones that have been heated and optimized a natural rating . It is worth noting that the color of gemstones after heating is a permanent change and the color will not change with the passage of time.
More sapphire knowledge
"Sapphire is one of the five most valuable gemstones in the world. It is a general name for corundum gemstones of other colors except red rubies. In ancient Europe, sapphires were only used by royal families and nobles ..."
Dec 13 2019, 04:29 pm
"Sapphires were first discovered in Kashmir in the 19th century, and Myanmar has a history of sapphire production for more than 1,000 years. The sapphires produced in the two places are rare and have magnificent colors. However, compared to the two, Sri Lanka..."
Apr 2 2019, 10:23 am
