The difference between unfired and fired ruby is mainly reflected in the following aspects:
1.Color: Unfired rubies tend to be darker in color with a rich red hue, while fired rubies may become lighter in color and appear brighter red or orange-red.
2.Transparency: Unburnt rubies have higher transparency and appear clearer and more translucent, while burnt rubies may have a hazy or hazy feel due to impurities generated during the heating process.
3.Texture: Unfired rubies usually have a more uniform texture and pure crystals, while fired rubies may have some imperfections such as gas-liquid inclusions and fissures.
4.Luster: Unfired rubies tend to have a brighter luster and a strong vitreous luster, while fired rubies may have a slightly duller luster due to changes in crystal structure.
5.Value: Unburned rubies are generally more valuable than burnt rubies because they are more natural and pure in quality and in smaller quantities.
Overall, both unfired and burnt rubies have their own unique characteristics and values, and consumers can choose the right ruby for their preferences and needs. At the same time, when buying rubies, it is recommended to choose regular merchants and buy reliable and reasonable products.