Organic gemstones are typically formed in connection with the physiological activities of various organisms in the natural world.

For example, amber is a fossilized resin secreted by plants over a long period of geological processes to protect wounds or young shoots.

Pearls are formed as a response to irritants within pearl oysters, creating growths known as "pearl sacs," and coral is the result of the accumulation of the skeletal remains of coral polyps over time.

As a result, the properties of organic gemstones also include characteristics inherited from living organisms. They contain organic components, generally have lower hardness, and exhibit poor resistance to acids, alkalis, and heat. In comparison to other jewelry, they require more care and maintenance from the wearer.

Pearl：

Due to their organic nature, these gemstones often have lower hardness and relatively poor resistance to acids, alkalis, and heat. Therefore, they require careful care from the wearer. Pearls primarily consist of calcium carbonate, proteins, and water, making them susceptible to acidic substances.

1. Avoid heat sources. High temperatures can lead to the evaporation of water and the aging of proteins in pearls, causing structural damage ranging from discoloration to complete breakage. High temperatures can also dissolve or age the glue used to secure pearls.

2. Stay away from bleaching agents and atmospheres. The beautiful color of pearls is often attributed to organic pigments. Exposure to bleaching agents, such as disinfectants and cleaning agents, can cause them to bleach and fade, especially for gold and black pearls.

Coral：

Like pearls, coral is composed of calcium carbonate, a small amount of proteins, and water. However, its structure is different from pearls, making it relatively easier to maintain.

1. Acidic substances can damage calcium carbonate, and sweat, despite being weakly acidic, is coral's biggest enemy. Neglecting care may result in white spots or "mold stains" on the surface of poorly maintained red coral.

2. Avoid high temperatures and bleaching agents. Coral's color significantly affects its value, and both high temperatures and bleaching agents can cause organic pigments to deteriorate, leading to discoloration.

3. Clean coral jewelry with pure water or warm water, using mild dishwashing detergent as the most suitable neutral cleaner. Coral jewelry should not be soaked in water for extended periods. Dry coral jewelry immediately after cleaning it with cool air.

Amber：

Amber is predominantly composed of organic matter and is a fossilized natural resin. Pay special attention to its sensitivity to heat, light, hardness, and brittleness during wear and maintenance.

1. Amber is highly sensitive to temperature changes. It begins to soften at 150°C and continues to decompose with further heating, leading to cracks due to changes in the volume of internal substances.

2. Amber is also sensitive to light, especially ultraviolet (UV) light. UV light accelerates its aging process, causing surface cloudiness, loss of luster, and micro-cracks. Therefore, amber jewelry should be protected from prolonged exposure to sunlight, and environmental light sources during display should ideally be free of UV light.

The care and maintenance of organic gemstones, such as pearls, coral, and amber, require a thoughtful approach due to their unique properties inherited from living organisms. From avoiding heat sources to steering clear of bleaching agents, responsible care ensures the longevity and beauty of these natural treasures.

With an understanding of their sensitivity to temperature, light, and environmental factors, wearers can enjoy the allure of organic gemstones while preserving their timeless charm.