1. You can lay the necklace flat on the table, so that the knotted position can be clearly seen, and then lift the knotted necklace with a needle to make the knotted place looser and looser, and then you can open the knot of the necklace. You can also put it in water and pick it with a needle or toothpick.

2. Talcum powder can be added to the knot of the necklace, which has a smooth effect when applied to the body. Adding it to the necklace can lubricate and make it easier to separate. Similarly, you can use lubricating oil, such as olive oil, to make the knot of the necklace oily, so that the necklace can be easily untied.

In addition, when tying a knot, don't put a thin necklace on your hand, which will make the knot tighter.

Extended data:

Maintenance method of gold necklace:

1. First, store gold jewelry in jewelry boxes or suede, and get into the habit of not throwing it with other jewelry after wearing it to prevent mutual scratches.

2. Put the precious ornaments in a safe place and buy enough insurance. If you don't know much about the value of your jewelry, please take it to the local jeweler for evaluation.

3. Wash gold ornaments regularly. This can ensure that jewelry presents the best luster and lasts longer. The cleaning method of gold jewelry is the same as other precious jewelry. Use a jewelry cleaner sold in the market, or soak it in a solution soaked in soap and water, and then gently wipe it with a soft cloth.

4. For the gold jewelry alum inlaid with precious stones, it needs to be cleaned once every six months, and the jewelry should be adjusted, resized, polished and cleaned by a qualified jeweler.

If there are scratches visible to the naked eye, please take the gold jewelry to a qualified jeweler for polishing.

6. Please don't wear gold ornaments when doing housework cleaning, gardening and other types of heavy work or physical activities.

7. It is best not to wear or reduce the time of wearing gold jewelry in summer. Sticking or soaking in sweat will make blonde hair black, and it will also cause itchy skin or allergic symptoms for this reason.

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