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 JEWELLERYA set of gemstone evaluation criteria has been established to help everyone better understand the characteristics of the selected blue sapphires.
WILLS JEWELLERY Gemstone evaluation
Rating notes
Cutting 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. Commonly seen is the brilliant cut crown(Crown)Pavilion with a tiered cutting design(Pavilion)to perfectly showcase the inherent color of the gemstone.
Origin Origin：The physical characteristics of a gemstone’s origin. 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 Saturation:The saturation of a gemstone’s inherent natural color. 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 is closely related to the place of origin and is also one of the characteristics of the place of origin.
ribbon Zoning：Color bands are an important element in giving gemstones 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 Transparency：The density, distribution, and quality of inclusions affect the gemstone's appearance,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 it more appreciable, thereby increasing its value; naked eye observation cannot distinguish whether the gem has been heated. All heat-optimized gemstones are natural(Natural)The professional gemological laboratory will also provide heat-treated optimized gemstones. - natural(Natural)Rating. It is worth noting that the color of the gemstone after heating is permanent(permanent)The change, 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
