Is safty to cleaning jewellery via ultrasonic cleaner？

Ultrasonic cleaning machine can clean jewelry safely. However, the following points need to be noted:
1. Different types and materials of jewelry require different cleaning fluids and cleaning times, and it is best to follow the manufacturer's instructions for operation.
2. If the jewelry is faulty or worn, it is better not to use the Ultrasonic cleaning for cleaning to avoid further damage.
3. Some gems and metals in jewelry are sensitive to ultrasonic waves, such as soft pottery, bright brass, amber, etc. When using Ultrasonic cleaning, attention should be paid, and it is better to ask jewelry experts or manufacturers.
4. If there is coating or painting on the jewelry, it is better not to use Ultrasonic cleaning for cleaning, so as to avoid damage to the coating or painting.
When cleaning jewelry, appropriate cleaning solution should be used, and the concentration and cleaning time of the cleaning solution should be controlled to avoid damaging the surface or internal structure of the jewelry and causing damage.
6. When using the Ultrasonic cleaner for jewelry cleaning, attention should be paid to keeping the cleaner dry and clean to ensure the quality of cleaning results.
7. Finally, it should be noted that after cleaning the jewelry, it should be cleaned in a timely manner and wiped and maintained with a clean towel to ensure the quality and lifespan of the jewelry.