Mother wants to send a necklace as a birthday present. Is the budget around 10 thousand gold or jade? Which is more valuable for investment?

The water in the emerald circle is deep. In addition to the large price difference, jade's various fake technologies are also dazzling, unless you have your own channels or resources to choose from. If you choose jadeite from big brands or shopping malls, it is just like buying imported cars from 4S stores. Going out is not worth the original price, so it is recommended to choose gold.

Identify adulteration:

1. Does gold have white highlights?

Cut the gold bars or jewelry with scissors, and observe the section with a magnifying glass. If you see white bright spots, because gold and iridium can't blend together, it means that gold is doped with iridium.

2. Measure the specific gravity.

First, measure the weight of a pure gold bar with a balance, then put the gold bar into a measuring cup and pour water to drown it. Then put the detected gold bars into a measuring cup and observe whether the scale of water rises or falls. As long as there is a change, it means that gold bars are not pure gold. But if it is gold jewelry, this method is not applicable, because there is air in gold jewelry.

Real gold is not afraid of fire.

Put gold bars or gold jewelry on the fire for a period of time and observe its changes. Because iridium will combine with oxygen in the air to produce oxidation reaction, gold bars with insufficient purity will turn gray; And pure gold will appear bright red after being baked by fire. However, this method may have some damage to jewelry.