In view of the high melting point and hardness of platinum, there are many uncertainties in the detection of melted platinum in gold jewelry stores. In order to avoid recycling jewelry containing impurities such as platinum necklaces, many gold jewelry stores will refuse to recycle platinum. Therefore, if customers want to realize platinum jewelry, they have to spend some energy, such as selling it at a low price in a pawnshop or recycling it at the point of purchase.
Relatively speaking, it is much more convenient to recycle gold and K gold. Almost all gold shops and jewelry stores are willing to recycle, and the price is generally not wrong. Therefore, if you ask whether gold and K-gold are more valuable than platinum, the answer is yes. Then why do many businesses still strongly recommend platinum? The processing cost of platinum is higher than that of gold and k-gold. The processing cost of platinum is much higher than that of gold and K-gold, so it is not surprising that businesses aiming at earning more labor costs strongly recommend platinum.
If you want to preserve your value, you still have to choose gold. Platinum is just a relatively high labor cost, and its ability to maintain value is still worse than that of gold. Many gold shops do not accept platinum because there are uncertain factors in the process to avoid recycling gold containing impurities.