1. Color: Platinum and rose gold have different colors. Rose gold is a mixed gold, which is not easy to fade, while platinum has collection value and preservation function.
2. Price: From the cost point of view, the cost of 18K platinum is higher than that of rose gold, so the price of platinum necklace is usually about 5% higher than that of rose gold.
3. Brand: The price of platinum and rose gold may be different among different brands of jewelry, and the price of platinum necklaces of some brands may be lower than that of rose gold.
Based on the above aspects, it is not clear which metal is better, depending on personal preference and budget. When choosing, you can refer to the following suggestions:
1. If you prefer the hue and style of rose gold and have a limited budget, you can choose a rose gold necklace.
2. If you pay more attention to the luster and preservation of platinum and have a high budget, you can choose a platinum necklace.
3. Before choosing, you can compare different brands and series of platinum and rose gold necklaces to understand the differences in prices and styles, so as to make a choice that is more in line with your own needs and budget.