What kind of gold is red gold?

Red gold means pure gold. Red gold is the title of gold purity, also known as pure gold or 24K gold. So basically red gold means its gold content is close to 100%. Red gold has different standards because of different time and place. Gold with a purity of 99.6% sold in the international market is called red gold. Note: The gold content cannot reach 100%.

Identification of pure gold

Look at the color: the higher the purity, the darker the color. The fineness of deep red yellow is above 95%, light red yellow is 90-95%, light yellow is 80-85%, blue yellow is 65-70%, blue white is only 50-60%, and yellow white is less than 50%.

Look at the hardness: pure gold is soft in texture and low in hardness. You can draw shallow marks with your nails, and you can leave tooth marks after biting. Gold ornaments with high color are softer than those with low color, and the more copper they contain, the harder they are. Bending method can also be used to test hardness. Pure gold is soft and easy to bend, and the lower the purity, the more difficult it is to bend.

Burn with fire: burn the jewelry to be identified with fire (do not melt and deform the jewelry), and observe the color change after cooling. If the surface is still golden, it is pure gold; If the color darkens or turns black to varying degrees, it is not pure gold. Generally, the lower the fineness, the thicker the color, and all of them turn black, indicating that they are fake gold ornaments.

Look at the sign: all domestic gold ornaments are purified and prepared according to international standards, and stamped, for example, "24K" means "full red" or "thousand gold"; 18K gold, marked "18k"; If the fineness is less than 10K, the K-gold seal number cannot be printed as required.