Gold: It is a precious metal with yellow luster. Its chemical element symbol is Au, which comes from Latin Aurora. Aurora, the goddess of dawn in Roman mythology, means shining dawn. Generally speaking, the gold in the world is in ounces. In ancient China, gold was measured in ounces. This is a very important metal. It is not only a special currency for reserve and investment, but also an important material for jewelry industry, electronics industry, modern communication, aerospace industry and other departments.
Platinum: international platinum association standard: platinum = platinum, platinum is the common name of platinum. Common white precious metals in jewelry stores are platinum (platinum) and platinum. Although the surface looks the same, platinum and platinum are two completely different metals, which are far apart. Because of the high melting point, gold shops and jewelry stores generally do not provide sizing services, so they have to buy other styles of jewelry. If there is no size, platinum should also be rhodium-plated, which is similar to the rhodium-plated surface of 18K gold.
Note: Not all white metals are platinum. To buy real platinum jewelry, just turn it over and see if there is a Pt logo in it.
Diamond: Diamond is a simple crystal composed of carbon element formed in the deep part of the earth at high pressure and high temperature. Diamonds are beautiful and rare. They are symbols of love and loyalty, representing eternal love. However, diamonds are a symbol of love in weddings or unforgettable festivals.
Gold is definitely the most valuable. The country uses gold as a reserve to adjust the market price, and the international market uses gold as a currency, so the effect of maintaining value is the best, and there is no devaluation problem.
The effect of maintaining and increasing the value of platinum is not as good as that of gold, because its fluidity and manufacturing technology should be considered to maintain and increase the value. The value preservation of gold lies in its good liquidity and the convenience of investment transactions.
Diamonds can only be saved when they reach 1 carat. In order to keep the value of diamonds, they must reach 1 carat, and have good clarity, color and cutting. Because diamonds are rare gems, things are rare and precious. There are many small diamonds produced all over the world, so they have no preservation value; Only big diamonds are rare, so there is room for preservation and appreciation. In addition, the discount ability of diamonds is not as strong as that of gold, so diamonds are more suitable for long-term investment.