How to identify genuine and fake platinum rings
1. color Zephyr: pure platinum is white with bright luster, platinum is beige, and silver is white. Can be distinguished from the surface color.
2. Hand balance method: the density of platinum reaches 265,438+0.45. Through the balance test of the same volume of materials, platinum has a heavy feeling, which is heavier than gold (19.36), K- platinum and silver (10.45).
3. Melting method: The melting point of platinum reaches 1773oC, which is much higher than that of K platinum and silver. General welding guns can't melt platinum, so they can identify the authenticity. And that color of platinum doe not change after cool.
4, marking method: platinum jewelry has a standard imprint. Internationally, it is expressed by the words PT or PD. For example, the purity of PT950 platinum is 950%.
5. Natural gas method: put jewelry on the twisted gas stove mouth for a few minutes. If the jewelry turns red and heats up to light the gas stove, it is platinum products. This is because platinum can be used as a catalyst to promote the oxidation and heat release of gas and air, and make platinum turn red, thus igniting the gas.
Method for identify true and false platinum ring
1. Chemical identification method
In addition to the conventional methods, we can also use some special methods to identify platinum rings. For example, we grind the platinum ring on the touchstone and drop a few drops with a mixture of nitric acid and hydrochloric acid. If there are wear marks, it means that it is real platinum; In addition, we can also put mercury on platinum, and materials such as gold and silver will be chemically fused with mercury and be polluted, while real platinum will not be polluted.
2. Conventional identification methods
The common way to identify platinum rings is to look at the color, weigh and look at the mark. Platinum is gray or silvery white with hard texture, while fake silver is white. In terms of weight, platinum is twice that of the same volume of silver and 1.2 times that of platinum. There is also platinum with unique imprint of pt, silver is S, and platinum is au or G..
How to maintain the platinum ring?
1. When not in use, put the platinum ring alone in the jewelry box or soft leather pocket.
2. Don't wear a platinum ring and gold jewelry at the same time, because gold is soft. If they rub against each other, the gold powder will be adsorbed on platinum, which will turn platinum yellow and affect its unique pure luster.
3. If you wear it frequently, clean the platinum ring regularly to keep it shiny. You can use jewelry cleaners sold in the market, or you can clean them yourself. Soak it in a solution of soap and warm water, and then gently wipe it with a soft cloth.
4. If the platinum ring is set with diamonds, don't let the platinum ring be stained with oil or bleach when doing housework. Although chemicals will not damage platinum, they may discolor diamonds or precious stones.
Rules for buying platinum rings
It is important to set the base according to your hobbies and personality. Of course, the most classic is the pointed inlay, which can make the gem have perfect luster from any angle. If you don't like a single diamond, you can choose to set it closely, separate the gems with small convex grooves, and set a few small diamonds at the same time to create a more dazzling and moving effect.
Mosaic is a complicated course with high technical requirements. Whether a diamond can be set firmly is not simply determined by the hardness of the metal. Because of its excellent toughness, platinum is not easy to break and wear, so it can be competent for all kinds of complex and exquisite processes and give better protection to diamonds.