以不超过 5% 的误差标识最小金属重量。您商品的最小金属重量应包括珠宝首饰商品的所有部件，如耳饰背扣、耳针、吊坠和链条。不同的指环大小可能有不同的金属重量。
在商品名称、商品功能、规格和描述中指明您金饰的纯度，如 18k 或 14k。本规则适用于所有填金和镀金商品。纯度不足 10k 的金合金商品不能被描述为“黄金”。
为所有宝石、珍珠和钻石商品指明处理方式，如热处理、辐照、涂层或浸油。玻璃填注的宝石和净度增强的钻石不具备在 Amazon.com 上销售的资格。
10. 在商品名称、商品功能、规格和描述中标识商品的制作方法（例如合成或人造），来描述非天然的诞生石、珍珠、钻石或宝石。例如，您不能单独使用“诞生石”的字样描述合成（仿制）或人造（实验室制造的）宝石。必须在商品描述之前使用正确的标识符，可能包括“实验室培育”、“实验室制造”、“合成”、“仿制”或“人造”，例如：“合成 7 月诞生石”。如果诞生石是天然宝石，则上述规则不适用。描述为“7 月诞生石”的商品意味着您描述的是天然诞生石。
Note: 我们建议您自己进行珠宝首饰质量保证。需要注意的内容包括：了解自己销售的是什么、了解自己的原材料、指定内部质检流程以确保员工由始至终都遵循流程，以及仔细检查所有对应字段都正确填写以便定期对商品进行质检。请切记，您的所有商品都必须符合所有适用法律法规和政策要求，包括《美国联邦贸易委员会 (FTC) 珠宝首饰指南》、以及《亚马逊珠宝首饰质量保证标准》。在卖家平台搜索“亚马逊首饰质量保证标准”，阅读全文。
Tips for Listing Jewelry
Use these tips to help you ensure that your products have clear and accurate titles, product features, specifications, and descriptions. Your products must meet or exceed their representation on the Amazon website. Products with the most accurate titles are more likely to fulfill buyers’ expectations.
Provide attributes for total metal weight, metal type, and metal stamp for all your products.
Identify the minimum metal weight within 5% accuracy. The minimum metal weight for your items should include all components of the jewelry items such as earring backs, posts, pendants, and chains. Different ring sizes may have different metal weights.
Do not identify an item as being “hypoallergenic” unless it is either free of all known allergens, is a pure metal, or you have scientific evidence that the product does not cause allergic reactions.
Note: Jewelry containing tungsten, stainless steel, and nickel-plated sterling silver cannot be described as hypoallergenic.
Identify your product as fine metal-filled or fine metal-plated in the title, product features, specifications, and descriptions. For example, you must clearly identify applicable products as “gold-filled” or “gold-plated.” Additionally, make sure to clearly describe all parts of your product that may be of a different quality. For example, sterling-silver pendant with silver-plated chain.
Indicate your gold product’s fineness, such as 18k or 14k, in the title, product features, specifications, and descriptions. This rule applies to all gold-filled and gold-plated items. Gold alloy products with less than 10k fineness cannot be described as “gold.”
Do not use fine metal names or gemstone names to describe a product’s color. For example, do not describe an item as “amethyst CZ.” If an item has a gold color, you may describe it as, for example, “gold-tone.”
Provide total diamond weight, stone color, and stone clarity attributes for all diamond products.
Identify cultured, farmed, and freshwater pearls with the word “cultured” in your product’s title, product features, specifications, and descriptions.
Identify any treatments, such as heat treatment, irradiation, coatings, or oiling, for all gemstone, pearls, and diamond products. Glass-filled gemstones and clarity-enhanced diamonds are not eligible for sale on Amazon.com.
Identify the creation method (such as imitation, or synthetic) for your products in the title, product features, specifications and descriptions to describe pearls, diamonds, birthstones, or gemstones that are not natural. For example, you cannot use the word “birthstone” alone to describe an imitation (simulated), or synthetic (laboratory-created) gemstone. You must precede it with the correct descriptor, which could include “laboratory-grown,” “laboratory-created,”, “imitation,” “simulated”, or “synthetic” ,for example: “imitation July birthstone”. If the birthstone is a natural gemstone, the above stated rule does not apply. A product described as a “July birthstone” would mean that you are describing a natural birthstone.
Note: We suggest that you perform your own jewelry quality assurance. A few places to start looking include: understanding what you are selling, knowing your raw materials, developing an in-house quality-assurance process that ensures your employees follow your process from beginning to end, and routinely performing quality assurance on your listings by double-checking that all appropriate fields are filled out accurately. Remember all your listings must meet all applicable legal, regulatory and policy requirements, including the Federal Trade Commission (FTC) Jewelry Guidelines and the Amazon Jewelry Quality Assurance Standards. Search "Amazon Jewelry Quality Assurance Standards" in Seller Central to read the full article.