How to distinguish between platinum and white gold

Nowadays, platinum and white gold are commonly used as platinum. In fact, this statement is wrong. There are differences between platinum and white gold, which are two different metals. Their prices in the market are also very different. Therefore, everyone must pay attention to whether it is platinum or white gold when buying a wedding diamond ring. So how to distinguish between platinum and white gold? In fact, it can be judged in several ways. Let's take a look.

Ingredients Platinum: Platinum (Pt), natural element Platinum is a rare precious metal element in the earth's crust. Its chemical properties are more stable than gold and its price is more expensive than gold. According to the national standard for precious metal jewelry, only platinum can be called platinum. The "Pt900" or "Pt950" seen on the jewelry store's products means that the platinum content of the jewelry is 90% and 95% respectively. In addition, only jewelry containing more than 85% platinum can carry any of the following proprietary labels—platinum, platinum, platinum, or Pt. Pt850, Pt900, Pt950, Pt990 are the four most common species.

White K gold: K white gold is a white alloy made of gold and palladium or smelted from nickel, silver, copper, zinc and Other metals. Its main component is still gold, its content is up to 75%. Many newcomers nowadays use 18K white gold for diamonds, so to be more precise, K white gold should be called white gold. Generally marked 18K white gold, 750 platinum, 750G and so on.

Imprinted platinum indicates Pt. "Pt950" means that 95% of the platinum is fine, and 99% of platinum-containing jewelry is generally marked with "foot platinum". When purchasing, as long as the jewelry in the handle is turned to the back, the real platinum jewelry, whether it is a ring, pendant, or a small earring, will be engraved with a small line of marks: Pt900 or Pt950.

White K gold indicates K number. K is the gold content, such as the standard 18K white, 750G, 750 gold words are gold 75% white gold. The purity of platinum jewelry is not indicated by "K".

weight:

Platinum density is the largest among inlaid metals, so platinum of the same style and size is much heavier than white K gold jewelry, and it is obviously heavy. Even a simple wedding ring made of platinum is obviously heavier than white K gold.

colour:

The color and luster of platinum are natural and last forever. Pure platinum is silvery white with a metallic sheen.

White gold is a white appearance by fusing gold and other metals. The color of white K gold is white, off-white, because its color is usually enhanced with surface rhodium plating, but this electroplating wears out, giving it the inherent dull yellow color of white gold.

Burning:

Platinum has a melting point of 1,773 degrees Celsius, which is much higher than K platinum. Generally, the welding torch cannot melt platinum, and the color of the platinum does not change after cooling. On the other hand, the K white gold jewelry has a smoke-grey oxide layer on the surface, and the color is lower and darker.

Try:

When mercury is applied to platinum, platinum will not be contaminated, and K platinum will be contaminated with mercury.