Education
Red Flags on a Jewelry Product Page
Written by people who write product pages, about what a bad one leaves out.
Written by the Mapple Gems workshop, Surat · Updated 19 August 2026
Short answer
The worst signals on a jewellery listing are omissions, not claims. No karat stated. No millimetre size. No named grading laboratory. No total weight broken down. A permanent “compare at” price. Identical stock photography across unrelated sellers. Nothing about who made it. A page that will not commit to a number is choosing not to, and that choice is the information.
We write these pages for a living, so we know exactly how much can be left out while still sounding complete. A listing can run four hundred enthusiastic words and tell you almost nothing checkable. Below is what to look for, roughly in order of how much it should worry you.
1. “Gold” with no karat
The single most common omission. Solid gold is 10K, 14K or 18K, and any of those is fine. What is not fine is a page that says only “gold”, “gold tone”, “gold finish” or “18K gold plated” while the title implies solid metal.
Plated, vermeil and gold-filled are base metals with a surface layer. They have legitimate uses, and a seller stating them clearly is being honest. A seller obscuring them is not.
2. Carat weight with no millimetre size
Carat is weight. Millimetres are what you see. A listing that gives one and not the other has chosen the number that flatters.
This matters doubly for moissanite, which is about 15% less dense than diamond and therefore sold by diamond equivalent weight rather than true carat. Without the millimetre figure you cannot compare two listings at all.
3. A total weight with no breakdown
“2 CTTW” means two carats spread across every stone in the piece. That could be a 2 ct centre, or a 0.75 ct centre with the rest scattered across a halo and shank. Those are different rings at different prices.
If a page leads with a total and never states the centre stone separately, assume the centre is smaller than you are picturing.
| What the page says | What to ask |
|---|---|
| “Gold ring” | Solid or plated? Which karat? |
| “2 carat moissanite” | What is the diameter in millimetres? |
| “3 CTTW” | What is the centre stone on its own? |
| “Certified” | Certified by whom? Report number? |
| “Ships in 10–12 days” | Is that transit only? How long to make it? |
| “Was $2,400, now $699” | Has it ever sold at $2,400? |
4. “Certified” without a laboratory name
Naming the lab is a one-word answer: IGI, GCAL, GIA. A page that says a piece “comes with a certificate” and never names the issuer is usually describing its own printed card.
Worse is a document designed to resemble a laboratory report — same layout, same plotting diagram, an unfamiliar three-letter acronym. And note that a report describes a stone, not a ring: without a laser inscription to match, nothing links the report to the piece you receive.
5. A permanent sale price
A struck-through “compare at” figure that never changes is a pricing device, not a discount. In lab grown diamonds specifically this has become endemic, because prices fell so far between 2020 and 2024 that inflated reference prices are easy to construct.
Judge the actual number against what the same specification sells for elsewhere today. Never against the number beside it.
The check that takes ten seconds and catches the most. Right-click the main product photo and run a reverse image search. If the same image appears on eleven other stores under eleven different brand names, nobody in that chain made the piece, and none of them can answer a technical question about it. A workshop that made something photographs the thing it made. This is the fastest single test on this page, and it is the one almost nobody runs.
6. Delivery time that hides production time
A shipping label saying “10–12 days” almost always means transit only. A made-to-order piece has to be built first, and that is usually another week or more.
This is rarely dishonesty — it is a checkout field doing a job it was not designed for. But a page that states both numbers separately is written by someone who has thought about the customer arriving disappointed.
7. No sizing or resizing information
Some designs cannot be resized. A full eternity band, or a shank with pavé running the whole way round, has no plain metal to cut and rejoin. If a page sells a full eternity band without mentioning this, either they do not know or they would rather you found out later.
8. Nothing about who is behind it
No address, no workshop, no named people, no way to reach a human before ordering. You do not need a founder’s life story, but you should be able to tell whether you are buying from a maker, a retailer or a drop-shipper.
A related tell: ask a specific technical question and time the answer. Someone who makes jewellery knows the karat, the millimetres and the bench time immediately, because that is what they handle all day.
What a good page looks like
- Metal and karat, stated plainly.
- Centre stone in millimetres and carat or DEW.
- Total weight broken into centre and accents.
- The grading laboratory named, where a report exists.
- Production time and transit time as two separate figures.
- Whether the design can be resized.
- A clear statement of what the stone is. Moissanite described as moissanite, never as a diamond.
None of that is difficult to write. Which is rather the point: a page missing all of it has not been rushed, it has been decided.
Keep reading
- Ten questions to ask any jeweller
- CT vs CTW vs CTTW — reading total weight correctly
- Certified vs uncertified lab grown diamonds
Frequently asked questions
How can I tell if a jewellery website is trustworthy?
Judge by what the product page commits to rather than how it reads. A trustworthy listing states the karat, the centre stone in millimetres, the grading laboratory by name, production and transit times separately, and whether the design can be resized. Omitting all of those is a decision, not an oversight.
What does it mean if the same product photo appears on many sites?
It means none of those sellers made the piece — they are all listing the same supplier’s catalogue image. That is not illegal, but it tells you nobody in the chain can answer a technical question about construction, and that after-sales work will be slow. A reverse image search on the main photo takes about ten seconds.
Is a big discount on a lab grown diamond a red flag?
A permanent one is. Lab grown prices fell steeply between 2020 and 2024 and have since flattened near production cost, which makes inflated reference prices easy to construct. Compare the actual selling price against what the same specification costs elsewhere today, and disregard the struck-through figure entirely.
What does “18K gold plated” actually mean?
A base metal core with a thin layer of 18K gold on the surface. The karat describes the plating, not the piece. It will wear through with daily use, and it cannot be resized or repaired the way solid gold can. Sellers who state it clearly are being straightforward; the problem is listings where the title implies solid metal and only the small print says plated.
Hold our pages to this list.
Karat, millimetres, lab name, production and transit separately. If anything is missing from a listing of ours, ask and we will add it.
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