No, because precious metals or necklaces containing precious metals must be marked with specific words. For example, platinum necklaces must be printed with PT. For example, Pt 950, 18k gold emblem AU750. If you buy online, on the one hand, you can't read clearly, on the other hand, the workmanship and style of the necklace are not very clear, and the reputation of online shopping merchants is questionable. Besides, whether the necklace is suitable for you will not be known until you try it on. It is suggested that the landlord go to the counter to buy it.