Jewelry collection is also graded

Jewelry can be divided into three grades according to its preciousness. High-grade gemstones include diamonds, red treasures, sapphire, emeralds, golden green cat eyes, red corals, marbles, and high-grade pearls. Among them, diamonds, red treasures, sapphire, emeralds are called precious stones in western countries, diamonds are the king of jewels; mid-range gems include aquamarine, tourmaline, zircon, spinel, etc., which are more common. Grades of general pearls, jade, and opal are also classified as mid-range gemstones; and low-grade gemstones include: turquoise, topaz, amethyst, olivine, citrine, and green gold.

At present, diamonds, red sapphires, emeralds and emeralds are recognized as the most precious four high-end gemstones, and they are also the most valuable for investment and collection, especially jadeite, which has become a "crazy stone" in recent years. Of course, at the same time, all kinds of gems must meet certain conditions before they are worth collecting. For example, diamonds are worth more than 1 carat. Every year, about 100 million carats of diamonds are mined, but only about 15 million carats are classified as gemstones, and then less are actually processed into diamonds, about 4 million carats. Among them, the conditions are good enough, and it is absolutely rare to cut out more than 1 carat of ore. Therefore, only diamonds with more than 1 carat are worth collecting. Most of the small carat diamonds that are usually bought only play a decorative role and are not collectible.

In terms of price, in the past ten years, the average price of 1 carat diamond has increased by about 18%, and the highest has reached 35%. Therefore, if it is collected for preservation, it is recommended to directly from the situation with sufficient economic ability. Start with a diamond above 1 carat. In addition, the value of diamonds should be evaluated from the performance of other 3C - cut, color, clarity, and one can not be neglected. For example, a diamond with a height of 5 carats but a poor clarity and color performance is just a weight.

In addition to the years of decline in the 1980s, the market for white diamonds has almost risen to date. Especially after 2003, diamond prices began to soar: 5 carats

For example, DIF standard parts are $60,000 per carat three or four years ago, and today the price is $140,000 per carat. Not to mention the colorful diamonds, which were produced during the evolution of the Earth for billions of years, are rare and difficult, and the supply is scarce, and its value is naturally extremely expensive. But have to say that white diamond collections and transactions are easier to get started. Since 1994, Christie's Hong Kong opened its first jewellery auction, and the "bull market" of jade prices has also arrived. After a brief "bear market" from 1997 to 1999, the price of jadeite has been steadily rising for nearly 20 years. From the perspective of the wide range of transactions, the diamond market is more international, and jade is only favored by buyers in Asia. In addition, in terms of price and grade standards, diamonds have formed a set of rigorous and scientific certification systems, both buyers and sellers can see at a glance.

Red sapphire is no exception, with fewer large particles. According to the data, the world's largest pigeon blood red is 55 carats. Those above 1-2 carats have been regarded as valuable treasures. Red corals, along with pearls and amber, are listed as three organic gemstones. They are made up of coral polyps and grow very slowly and are not regenerative. In addition, red corals only grow in the Taiwan Strait, the Japanese Strait, and the Baltic Strait. They are restricted by the sea area and the production is scarce. Due to the rarity and non-renewability of natural red coral, it is highly collectible.

However, due to national environmental protection policies, the number of corals that can now be mined is decreasing, and the trading of red corals is also limited. Moreover, corals are composed of carbonates with unstable properties. They are not suitable for long-term storage and their life span is less than one hundred years. Therefore, red corals are not suitable for long-term collection. The nature, integrity and volume determine the price of red coral, and coral debris is of little value.

In recent years, crystals have been sought after by buyers, and compared with the investment fields such as jade and red sapphires, the purchase cost of crystal is relatively low, and the collection is easier to start. However, in the crystal, only tourmaline is worth collecting. Crystal belongs to the "semi-precious stone", the hardness is good, but the toughness is not enough, it is easy to damage. A crystal ring may be staggered after being worn for two or three years. Therefore, in general, crystal does not have the value of long-term investment, preservation and appreciation.

Of course, antique crystals are generally difficult to find. Crystal products like the Stone Age have basically become rare treasures, but it is difficult to distinguish them (it can only be distinguished by the difference in production process) and the price is high. Therefore, the collection risk comparison Big. Throughout the past 10 years, the top 10 auctions of crystal auctions in the auction market can be found. The high value is mostly the crystal products of the late Qing Dynasty. Only three pieces are made during the Qianlong period, and one is a modern handicraft. The first five auction items were sold at more than 1 million yuan.

In terms of short-term, there is a kind of tourmaline in the crystal that has risen in price in the past two years, and the increase is large, so you can make short-term investment. Together with agate, crystal and jade, pearls are called the "four treasures" of ancient Chinese tradition. But the collection of pearls did not form a climate. The main reason is that pearls are renewable, natural pearls are difficult to maintain, and are easily soluble in water, so few collectors specialize in collecting pearls. Only a few rare natural pearls or antique pearls have a certain collection value. Such as rare natural black pearls. Although agate is also known as one of the four treasures, but because of its large output, the value has not been high, has been excluded from the ranks of jewelry collection.

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