1 thought on “Why does the 18K diamond ring become yellow!”

  1. Because 18K gold is 75%gold and 25%of other metals made of alloys, according to this proportion. The original color of 18K gold is actually yellow. Generally, white 18K gold is because a layer of platinum is plated on the surface. So after you wear it for a long time, you will turn yellow when you fall off. You can take it to the store and plated it, just like the new.

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