The outer ring of the platinum ring turns yellow after washing.

At present, many diamond rings on the market are mainly made of 18K gold. Because 18K gold is composed of 75% gold and 25% precious metals such as platinum, copper and nickel, the color depends on 25% formula, and many of them will appear pale yellow and white.

Cleaning method of platinum jewelry:

1. Wash with toothpaste or detergent. Just squeeze a proper amount of toothpaste on soft towels and other fabrics, then spread it evenly, and then gently wipe it back and forth on platinum ornaments, which can well remove the dirt and sweat stains accumulated on the surface for a long time.

2. Use diluted detergent [neutral], and finally rinse with pure water or clear water; You can also use toothpaste to evenly wrap the jewelry for about 10 minutes. Take out the toothpaste and wash it with warm water. After cleaning, the jewels regained their bright luster.

3. Use professional developing powder (available in photographic equipment stores), put a small amount of developing powder into a vessel, add water and stir evenly until it is completely melted, then soak the platinum jewelry in it for more than 5 minutes, and finally rinse it with clear water several times and dry it.