Unburned gemstones refer to natural or synthetic gemstones that have not been heated during the manufacturing process. Because heat treatment can change the color, transparency and other characteristics of gems, the purity and preciousness of unburned gems are higher. At the same time, because the manufacturing process of unburned gemstones has not been heated and its chemical composition has not been destroyed, its physical properties are more stable and lasting.

Unfired gems are highly sought after because of their nature and preciousness. Among them, sapphire, ruby, emerald and other unburned gems are particularly famous. Unburned gems are expensive in the market and are also sought after by jewelry collectors. Compared with burnt gems, unburned gems have higher collection value, and their original state without artificial transformation shows the unique color and natural beauty of gems.

Because of the preciousness and uniqueness of unburned gems, some counterfeit or heat-treated gems are sold as unburned gems in the market. Therefore, you must buy from reputable merchants and keep the certificate of quality and purchase records of the gems. At the same time, before buying unburned gems, you need to know the characteristics, market conditions and authenticity identification methods of such gems to avoid buying fake and shoddy products and better protect your investment and collection.