Mike, the Jewelry category is under heavy review for all. This is not about a boiler plate response. This is about Quality Assurance from what I understand from the letter. You claim Sterling Silver and therefore your products must adhere to the following including having stamps. Any precious metal must adhere to the following and also be patient; if they said they would call you, they will
Jewelry Quality Assurance Standards
Product Information and Specifications
1.1 Indication Marks/ Trademarks/Hallmark/ Country of Origin Stamping
All jewelry products manufactured from any precious metal must meet or exceed the legal requirements established by all applicable laws, ordinances, rules, regulations, orders, licenses, permits and other requirements, now or hereafter in effect, including but not limited to Federal Trade Commission rules and regulations and the National Gold and Silver Stamping Act. It is your responsibility to understand and comply with these requirements. (Please see section1.5 for further clarification and examples).
All jewelry products must meet the standards outlined in ASTM F2999-13.
All precious metals jewelry and related products must be stamped or engraved with the required precious metal stamp and the manufacturer's Registered Trademarks. These marks must be adjacent to, or as close as possible to each other. Each individual piece of merchandise must be stamped or engraved with clear and legible markings as required or exceeding requirements established by the U.S. Federal Government. All components that are not permanently attached to each other are required to be individually stamped. For example, earrings need to be stamped on the back component and the post or earring assembly. A pair of dangle earrings that has components attached via an unsoldered jump ring requires the stamp to be on both components. If a pendant is able to be removed from a chain, the hallmark and metal stamp need to be on both the pendant and the chain. If the stamp/engraving will damage the item or if the item is too small, a hangtag with stamp can be attached to the item.
When possible, the country of origin (for both domestic and import merchandise) should be stamped into the metal of the piece. It should be in close proximity to the hallmark and/or metal stamp. The lettering should be of equal size to any other stamping on the item. In the instance when the item is too small to be stamped, a tag of a size no more than ¼ by ½ inch may be attached with the English language name for country of origin only printed on it. It must be printed large enough so that it is legible without the use of magnification. The label, when reasonably possible, should be made and attached in a manner to prevent anyone, other than the purchaser, from removing, altering, or destroying the label. To determine whether an item can be labeled as Made in the USA, consult the FTC's labeling standard and guidance. Section 7 includes links to this FTC guidance, as well as the U.S. Customs and Border Protection general country of origin labeling guidance.
Stamping or engraving of rings should be done under the shoulders or as high up inside the shank as possible to avoid the sizing area, if possible.
For earrings, stamping or engraving must be located on the earring or post itself (it is not to detract from the finish or design of the earring) as well as the earring back/nut.
If an item contains more than 1 precious metal, (e.g., sterling silver/14 karat, 18 kt/Plat), both stamps must be on the item using the lowest karatage of each metal.
Amazon.com adheres to the FTC guidelines for acceptable tolerance for gold fineness. For normal gold items, the tolerance is +/- 0.003 of the stamped fineness. For items constructed with solder (bracelets, for example), the overall tolerance is 0.007.
Gold fineness (e.g. 10K, 14K, 24K) must be clearly disclosed when listing a product as "gold." Products with a gold fineness of less than 10K may not be referred to as "gold," even if the fineness is disclosed. For example, listing a product as being made from "9K gold" is not acceptable.
1.3 Sterling Silver
All Sterling Silver items must assay at 92.5% sterling. For normal sterling silver items (without solder), the tolerance is +/- 0.004. With solder, the tolerance is +/- 0.010.
As per FTC guidelines, certain findings on silver jewelry are exempt from assay considerations: pin stems, clasp safety tongues, etc. Nickel pin stems are acceptable.
Any gemstones used in sterling silver pieces are to meet the standards listed under Gemstone Standards, Section 3.
Products labeled "PLAT" or "PLATINUM" and presented as pure platinum must assay at 950 parts per thousand.
If the platinum content falls below 950/1000, the platinum content must be disclosed in the quality mark, such as 900 PLAT, or 900 PT.
Bracelet and necklace snap tongues as part of the clasp are exempt from platinum assay.
1.5 Stamping examples
Precious Metals: An accurate stamp is required on all precious metal products.
Example: Common Gold Stamps: 10k, 14k, 18k, 22k, 24k
Common Silver Stamps: Sterling Silver, .925, .999
Common Platinum Stamps: Plat, Pt, 950Plat, 900Pt
Plated Precious Metals/Vermeil: An accurate stamp is required for all products that are plated with precious metals. Note that the FTC requires a minimum plating thickness (which varies based on the plating method used) and fineness of the precious metal for a product to be called plated. If the item has a precious metal base, the stamp should reflect the precious metal base.
Example: Gold-Plated Sterling Silver = .925
Rhodium-Plated Gold = 14k
*If you are unclear about what Vermeil is, the definition according to FTC regulation is: An industry product may be described or marked as "vermeil" if it consists of a base of sterling silver coated or plated on all significant surfaces with gold, or gold alloy of not less than 10 karat fineness, that is of substantial thickness and a minimum thickness throughout equivalent to two and one half (2 ½) microns (or approximately 100/1,000,000ths of an inch) of fine gold.
Plated Base Metals/Gold-Filled Metal - Base metals that are plated with a precious metal do not need to be stamped.
Example: Gold-Plated Copper = no-metal-stamp; Silver-Plated Base = no-metal-stamp
Example: The product description can say 10k, but it needs to say "with 10k ear wires."
All units within an Amazon.com style/reference number must be uniform with regard to design, construction, color and surface finish, and gemstones must meet the standards set forth in the gemstone guidelines (see Section 3).
Ring shanks must be thick enough to withstand a moderate amount of hand-applied pressure. A suggested minimum thickness is .8mm thick, and 1.4mm side, but must be proportionate to the styling of the piece.
All jewelry items should have a well-finished appearance, including functional parts (clasps, earring backs, etc.). They should not be missing any removable components, such as earring backs, and should be fully and easily operational.
Tolerance for ring size is 1/4 size over or 1/8 size under stated ring size on detail page. For narrow rings, the size will be measured at the leading edge, and for wider rings, at the center of the shank.
Tolerance for chain and bracelet length is + ¼ inch as stated on packing slip/invoice, and is based on usable length when clasped, with a zero tolerance for under-measurement. This is due to online customers’ expectations that the chain not be LESS than the length ordered. The width must match the millimeter measurement on packing slip/invoice. Bangles are measured by inside circumference, and the tolerance is also + ¼ inch, with zero tolerance for under measurement. To ensure measuring accuracy, we recommend using a flexible plastic ruler, such as those used as accessories with Franklin Planners and Filofax organizers.
2.3 Casting and Construction
Eye-visible porosity or holes, when viewed from a “bent elbow” distance of 12”, in any amount or location is a critical defect.
Castings must be free of flashing and excess metal from air bubbles.
All soldered jewelry must be of like karat with no discoloration. There can be no open seams or joints, unfilled areas, cracks, or excessive solder.
Solder must not freeze any parts that should be moveable, i.e. chain links.
Ring heads must be straight and plumb when viewed from top or side profile.
Gallery work must be symmetrical and clean.
2.4 Polishing and Finishing
If ordered as polished, metal surfaces should be of high polish and free of eye-visible scratches or tool marks. Design details must be clean and distinct.
If item ordered with special finish such as satin, brushed, matte, etc., the finish must be uniformly applied , and if combined with another finish must not overlap adjacent areas where not intended.
All items must be clean and dry with no fingerprints, oils, or polishing rouge remaining.
Lint left under prongs from the polishing wheels/cloths is unacceptable.
Plated surfaces, such as 18 karat white gold with rhodium plating, should be uniform in color and show no signs of peeling, cracking or tarnishing.
2.5 Stone Setting
Loose stones of any kind are considered a defect. Stones will be tested with a set-testing machine to test tightness, as well as tweezers to test security.
Stones must be set level and consistent in height with respect to design.
Prongs must be even in shape, length, and placement. There should be no gaps between prongs and the stones.
Bezels must be smooth and even in thickness, and in proportion to the size of the stone they secure, with no gaps between the bezel and the stone.
In channel settings, stone tables must be set in the same plane, or follow a curve consistent with the design. The channel walls should be even and smooth, with a consistent seat cut for the girdle of the stones. Stones should be set girdle to girdle.
Stones should be set so that the culet is not exposed. Some designs may call for exposed culets, but the culet should not be felt during wear or taking item on or off.
Pearl jewelry such as earrings, rings, brooches, clasps, etc. must incorporate a cup and post for each pearl (or at least a post, depending on design/placement), with the pearl half-drilled and epoxied onto the cup and post.
Epoxy or glue may be used for pearls, inlay, and some cabochon opaque stones such as onyx, jade, etc. It may not be used for semi-precious or precious gemstones.
Findings with moveable parts must be fully functional, without significant binding during operation, and durable enough to withstand repeated operation.
Findings must be an appropriate size and weight for the item.
Pendant bales must be large enough to allow the pendant to swing freely on the chain. If pendants are sold without a chain, bales must be large enough to accommodate a normal variety of customer chains.
Earring posts must be strong enough to withstand normal use, and the ends of posts should be rounded and smooth. Ear wires and leverbacks should operate smoothly and close securely. Posts should have a usable length of approximately 9.5mm or 3/8 of an inch, and should have a thickness of approximately .70mm (+/- .04mm), depending on design/type.
Bracelets with a barrel or box clasp must have at least one figure-8 safety.
Colored Gemstone Standards
Color ranges for gemstones cannot exceed two tones of saturation.
If a new gemstone, organic material, or treatment is being supplied, vendors will be required to supply an identification report to support its authenticity from GIA and/or AGTA.
Only stable, permanent treatments and enhancements will be accepted. All treatments and enhancements must be completely and fully disclosed, and independent verification of stability of treatment may be required. Glass-filled or other nonpermanent treatments or enhancements are not accepted and will be rejected.
If origin of the stone is to be defined (i.e., Ceylon Sapphire), or the absence of treatment (i.e., unheated sapphire), we will require the vendor to sign a document verifying origin or absence of treatment, and may require a GIA or AGTA lab report for a sample as proof.
Gemstones will be evaluated with eye-visible criteria. Loupes will be used for defect clarification purposes only.
For all quartz gemstones (amethyst, citrine, smoky quartz, etc.), and for jadeite, Amazon.com may require a GIA or AGTA lab certification proving that the stones are genuine to be included with the QA sample.
Gemstones must be free of scratches, polishing lines, chips, cracks and abrasions. No obvious defects will be acceptable.
Gemstones must be symmetrical and properly cut. Faceting and depth must be appropriate to the diameter, shape, and type of material, and must be consistent throughout shipment. Stone girdles must be polished.
Amazon.com supports a policy of not purchasing stones from any sources connected with civil conflict, criminal or terrorist activities. We will ask our vendors to sign additional paperwork stating that they do not knowingly buy or sell any gemstones with links to such activities.
Any treatments such as laser drilling, fracture-filling or any other treatments are unacceptable and will be rejected.
Diamond color will be determined by direct comparison against GIA Master Stones.
Diamond weights will be verified, by direct weighing and/or weight estimation formulas. For diamond weights expressed as decimals, the weight should be accurate to the last stated decimal place (e.g., .47 carat means the weight is at least .465 carats), provided that, when weight is stated to only one decimal place, the weight must be accurate to the second decimal place (e.g., .4 carat means the weight at least .395 carats). For diamond weights expressed as fractions, carat weight tolerance is as follows:
Carat Weight Minimum Required Actual Carat Weight
1 ¼ 1.22
1 ½ 1.45
1 ¾ 1.70
2 ½ 2.45
If a jewelry product you list on Amazon.com incorporates a diamond with less than 17 symmetrical facets, you must clearly disclose this fact in the feature bullets or the product description when creating the product detail page. Extremely thick or thin girdles will not be accepted.
Large culets will not be accepted.
Diamonds containing open-cavity inclusions will not be accepted.
Naturals that affect the outline of the girdle or are assessed to be a setting risk will not be accepted.
Diamonds that contain inclusions that may make the diamond structurally unsound for mounting or wearing due to the size, nature and location of the inclusion will not be accepted.
Scratches, chips, burned facets or polish lines that are easily visible under 10X magnification will not be accepted.
Major symmetry defects will not be accepted.
Certificates of Authenticity
A Certificate of Authenticity is required for diamonds that states that the fineness of metal and gem carat weight and quality that meets or exceeds the representation of that item. We only accept certificates of authenticity from IGI, GIA or AGS. Certs are required for white diamonds only based on the following;
Diamond Stud Earrings: Total stated carat weight of ¾ or greater (any color, any clarity).
Rings: Cert is required if center stone’s stated weight is ¾ carat or larger (any color, any clarity). If there are side stones, they need to be included on the cert.
Pendants: Solitaires: Cert is required if center stone’s stated weight is ¾ carat or larger (any color, any clarity).
Independent Laboratory Testing
From time to time, jewelry samples will be provided to an accredited jewelry testing laboratory for thorough quality testing. The laboratory will test for conformance with the Amazon product description, as well as for compliance with FTC jewelry standards.
Amazon will contact you if your jewelry fails laboratory testing. Depending on the number of pieces that fail testing and the severity and type of failures, Amazon may take further actions ranging from working with you on a remedial plan to address the underlying cause to discontinuing the relationship with you.