Pick Opal has nine cheats

Opal is different from other gems. It is neither opaque nor fire-colored or exclusive. How to judge the pros and cons?

Pick Opal has nine cheats

1. Brightness determines everything: If you must use a sentence to explain the problem, it is "the brighter the opal, the better the quality." The low-end opal looks like Wu Wu’s lack of brilliance.

2. Presenting more than 3 colors: The highest-grade opal must be in multiple colors, that is, 3 or more colors.

3. Indispensable high saturation: Saturation is the purity of the color. When an opal gem appears, each color is very bright and saturated, which is another superior sign.

4. Judging the merits from the graphics: This is the unique judging feature of Opal, and the different color patterns also determine the value of Opal. Because the color of the opal surface is represented by irregular angular spots or color points, the mottled angular large spots are the best, and the beautiful patterns are called colorful, ribbon, straw, and chaff. Etc. There are also some irregular patterns that symbolize some wonderful things or like a painting. The superior pattern is very clear, including flower sea, rotation, lightning and flame. The poor pattern is blurry, with only a few small colored spots, like moss and grass.

5. The big head is always dominant: no matter which kind of gem is bought, the carat weight is a key factor affecting the price. The thickness in the entire opal is related to the size and shape of the opal itself, which is an important factor to consider and calculate when measuring value.

6. "Rotating" to observe more insurance: Since the value of opal is completely determined by color, the more uniform the color, the higher the value. Therefore, when purchasing opal, pay attention to observe the overall effect of the gemstone coloring, and rotate 360 ​​degrees. The quality opal has uniform brightness, saturation and color in the whole body, and there is no “blind zone”.

7. Smart face semi-finished products: Opal is a very soft gem, suitable for egg noodle processing or made into carved pieces, and the ring face can only be set. If you happen to buy a pendant and want to punch, it is a very risky move. Because any heating device can cause water evaporation in the opal, the direct result is that your opal not only cracks but also loses the most valuable color change effect, turning into a small stone stronger than ordinary stone. In summary, it is recommended to buy Opal finished jewelry, or opal semi-finished products that are easy to process.

8. Picking innocents: You don't want to see any gems, and all kinds of cockroaches will weaken the value of opal. There are almost no signs of obvious cracks on the surface of Opal. There are many fine cracks on the surface of the opal that will become worthless. Blisters or other mineral impurities are sometimes found under or inside colored opals. The color and pattern of high quality opal should be continuous and vary from angle to angle. When opal does not produce a changing surface, the color will only appear from one angle and will degrade the stone.

9. Must be a certificate: In order not to spend money and future investment, the purchase of a gem requires a jeweler to provide a certificate. It is an indispensable step for jewelers to present an authoritative gem identification certificate. This is not only to prove the need for value or resale of the insurance company, but also to clarify the responsibilities of both parties.

For more jewellery knowledge, please pay more attention to China Jewelry Merchants Network.

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