Guides
Guides
These are maintained references rather than articles. When a marketplace changes a rule, the guide changes with it — that is what separates this section from the notes.
What maintained means here
Every guide has a review cadence and a named owner.
Where a figure comes from a platform's own documentation, the guide shows the source and the date it was last read.
If a guide cannot be maintained, it does not get published.
The guides
An acceptable term stands immediately before the stone name, and is equally conspicuous
The clause puts the acceptable term immediately before the stone name, in equal conspicuousness.
The definition names carbon and a crystal system, not a place of origin
The definition of a diamond in § 23.12(a) names carbon and a crystal system, not a mine.
Any one of three conditions makes a treatment disclosure due
In the United States Jewelry Guides, a treatment disclosure is triggered by any one of three conditions, not by all three together.
Four wordings for a filled stone, and two variety names the text calls out
Two mislabels are named outright in the United States Jewelry Guides.
Every precious-metal word in a United States listing carries a condition
In the United States, each precious-metal word carries a condition on the metal itself.
The weight you write and the size your picture shows are the same kind of statement
A carat figure and a close-up frame are two claims about the same stone.
The letters in a United Kingdom hallmark name the party who submitted the item
In the United Kingdom, the letters stamped inside a shield are a sponsor's mark.
A ring size is a length, written as a whole number
ISO 8653:2016 defines a ring size as the inner circumference of the ring.
Two readings, one ring: what changed was the method
ISO 8653:2016 places the measuring point differently for rounded and flat inner profiles.
The classic length names are ranges, and they are defined for pearl strands
Collar, choker, princess, matinee, opera and rope are centimetre ranges in the CIBJO Pearl Book, each with its own clause number.
A length name points at a landmark, not at a fixed drop
Throat, neckbone, collarbone, bust and navel are the reference points a jewellery trade association gives for the six necklace lengths.
A full United Kingdom hallmark carries five component marks, and three of them are compulsory
In the United Kingdom the sponsor's or maker's mark, the metal and fineness mark and the assay office mark are the compulsory components.
The numerals report metal content in parts per thousand
In the United Kingdom, the numerals are a millesimal fineness mark: precious metal content expressed in parts per thousand on a 0 to 1000 rating.
Under United Kingdom law, a light single-metal article is exempt from hallmarking
In the United Kingdom, an article containing only one precious metal is outside the hallmarking requirement below a weight set in statute.
Which Etsy banner numbers our rule module actually stores
The mini and big Etsy shop banners record 1200x160 and 1200x300 as requirements and 1600x213 and 1600x400 as recommendations.
Which image checks actually fail
A requirement can fail an image; a recommendation cannot.
WebP is missing from one recorded list, and GIF is the only format with a separate animated case
In our recorded marketplace modules the Etsy format list contains no WebP, so the static-versus-animated question only ever arises for GIF.
Photographing engraved and personalised pieces
On a personalised piece the photograph is a proofing document, and the only person who can confirm the text is the customer who supplied it.
What each listing photo is for
A jewelry listing set rarely fails because one photo is weak. It fails because two photos answer the same question and something the buyer needed was never photographed.
Setting type decides the photograph
A bezel setting and a prong setting are different optical objects, so the same stone in each one needs a different light position and a different camera angle.
Sequencing photo edits for a product catalogue
Removing a background after you have already reduced a file discards the edge detail the cutout depends on, and flattening before you resize makes a background permanent.
Padding versus cropping jewelry photos
Cropping removes product; padding removes size in the frame.
Mixing real and generated photos in one listing
A listing is presented as one set, so what it can be used to check is decided by its least processed frame.
A photo style sheet for a jewelry shop
A photography standard that lives in someone's memory is not a standard.
Showing jewelry variants without confusing the buyer
A variant set is a comparison, so it only works when exactly one thing changes between frames.
Adding black on purpose
When a photograph is evenly lit and the piece still has no edges, the missing ingredient is dark.
Photographing matte, brushed and hammered finishes
The surface treatment decides the light, not the alloy.
Which material details survive a try-on
A try-on is generated against an instruction that names specific things to hold, and only a couple of them are about your material.
Etsy image sizes: all nine slots
Every Etsy image slot with its minimum and recommended size, taken from Etsy's own documentation and dated — including the numbers widely-published pages get wrong.
How to photograph rings
Angle, light, reflection control and depth of field for the hardest jewelry category — with an honest note on when a real shoot still wins.
How to photograph pearls
The one material where the standard big-soft-light advice destroys the thing being sold — and the counter-intuitive fix that brings lustre back.
Why black jewelry photographs grey
The only common jewelry fault whose cause is the measurement rather than the scene — which is why better lighting reliably fails to fix it.
If only one thing can be sharp
Close up something has to be soft, so choosing the sharp plane is choosing what the photograph is about — and the usual answer is a special case.
Photographing hallmarks and stamps
A stamp is displaced metal with no colour of its own, so it reads only as shadow — the one jewelry frame judged on whether it can be read rather than on how it looks.
Photographing clasps and closures
The one component a buyer operates rather than admires — which makes the closure frame a description of function, and the state you shoot it in the whole decision.
Photographing jewelry on a real hand
A body reflects colour into the metal, drifts between frames and arrives with its own condition — so the hand needs directing with the deliberateness usually spent on the light.
Choosing a surface, not a background
What the piece rests on is not scenery behind it — it is the largest thing inside its reflection, which makes it a lighting decision taken before any lamp.
How to photograph earrings
The only jewelry photograph where the subject can disagree with itself — why one earring looks bigger, and the positioning discipline that prevents it.
How to photograph necklaces
Why the one-big-soft-light rule that works for a ring flattens a chain into a grey line — and the layout-first method that replaces it.
Shopify product image sizes
Shopify's five image rules quoted from their own documentation and dated — with each one labelled a requirement, a recommendation or information, which is the distinction most summaries drop.