消费者称周生生足金挂坠被检测出含铁、银、钯，监管部门介入

Core Viewpoint - A customer in Guangdong reported issues with a gold pendant purchased from Chow Sang Sang, raising concerns about the gold content after the pendant showed signs of wear and varying gold purity levels upon testing [1][10]. Group 1: Customer Complaint - The customer, Ms. Li, purchased the pendant on January 5, 2023, believing in the brand's quality assurance, but it was scratched and showed white marks after one day of wear [2][4]. - Initial communication regarding a return was rejected by the store, leading to further dissatisfaction [2][6]. Group 2: Testing Results - Ms. Li conducted multiple tests on the pendant, revealing significant discrepancies in gold content across different points, with the highest purity at 99.99% and the lowest at 64.37%, a difference of 35.62% [10]. - The tests also indicated the presence of other metals such as iron, silver, and palladium [10]. Group 3: Company Response - Chow Sang Sang initially stated that the pendant's gold purity was guaranteed and suggested that the issue was not a quality problem, proposing a refurbishment instead of a return [6][11]. - Following the complaint, the company expressed willingness to accept a return out of goodwill, but required verification of the testing results through a recognized authority [11][14]. Group 4: Regulatory Involvement - The local market supervision authority has intervened in the dispute, confirming receipt of the complaint and reviewing the testing results provided by Ms. Li [14]. - The authority recommended that both parties agree to send the pendant to a third-party professional institution for formal assessment to ensure accuracy and objectivity [14].