About

A reference site with nothing to sell

What this is, what it deliberately is not, and the rules that decide what goes on it.

Jewelers Gallery is a free set of jewellery tools and references: what the metal in something is worth at today’s price, what the stamp inside it means, what size a ring is in four different countries, and how big a carat actually is.

Why it exists

Search for a gold calculator and nearly everything on the first page is operated by somebody who buys gold. Their arithmetic is usually correct. What they omit is the next step — that no buyer pays melt value, and that the gap between melt and an offer runs from a few percent at a refinery to more than half at the wrong end of the market.

That omission is the whole reason people arrive at a counter with the wrong number in their head. This site publishes the payout ranges alongside the melt value, because it has no reason not to.

What it is not

It is not a jeweller, a dealer, a broker or a buyer. It does not sell jewellery, buy jewellery, appraise jewellery, or refer you to anybody who does. It has no connection to any shop trading under a similar name — “gallery” is a common word in the trade, and several unrelated businesses use it.

It also cannot value your jewellery. It can value the metal in it, from a weight and a purity you supply. Everything that makes a piece worth more than its metal — the maker, the age, the stones, the condition — is outside the reach of a calculator, and the site says so rather than pretending otherwise.

The rules

These are written at the top of the source code and every page is held to them. They are not a disclaimer; they decide what gets built.

1. This is a measurement site, never an appraisal.
An appraisal is a professional opinion of value, given by a qualified appraiser who has the item in front of them. Arithmetic performed on a number you typed is not that, cannot be that, and must never be dressed up as that.
2. Melt value and resale value are always kept apart.
They are different quantities and confusing them is the single most expensive mistake a person selling jewellery makes. Melt is what the metal weighs in money. What a buyer hands you is melt minus their margin — and if the piece has a maker, a stone or an age worth something, selling it for melt destroys that value permanently.
3. No buyer is recommended, ranked, rated or linked.
The moment this site earns a referral fee on a sale, every payout percentage on it becomes suspect. Typical payout ranges are published so the reader can judge an offer themselves; who they take it to is not our business.
4. Never tell the reader to sell, hold, or buy.
We do not know whether the ring is scrap or an heirloom, and the difference is not in the arithmetic. State what the metal contains and let the person who owns it decide.
5. No invented numbers, and no false precision.
Every constant on this site is either a defined unit, a published standard, or a range presented as a range. A stamp is a nominal claim about purity, not a measurement of it — where that matters, the page says so instead of quietly rounding it away.
6. No urgency, no scarcity, no fear.
"Gold is at an all-time high, sell now" is the house style of the industry this site exists to make legible. There is no countdown, no alert, no "act now" on any page here.

Where the numbers come from

Metal prices are fetched live from a public spot-price feed each time a page loads, and converted into other currencies using European Central Bank reference rates. Every constant used in the arithmetic — the troy ounce, the pennyweight, the carat, the millesimal standards, the ring-size definitions, the diamond weight-estimation factors — is either an exact definition or a published standard. The workings are set out in how the numbers work.

If the price feed does not respond, the tools show nothing at all rather than a figure from an unknown time ago. A valuation carrying a stale price is worse than no valuation.

How it is paid for

The site is funded by advertising, served by Google AdSense. That pays for the domain and the hosting and keeps every tool free with no account and no email capture. What it does not buy is influence: no advertiser sees a page before it goes up, no buyer, jeweller or refinery is ranked, rated, recommended or linked in exchange for payment, and there are no affiliate links anywhere on the site. The tools are deliberately built to have no opinion about who you sell to, which makes them a poor vehicle for selling anything — that is a feature, and it is not for sale.

Corrections

If something here is wrong, please say so — an error on a page like this ends up in somebody’s negotiation. hello@jewelersgallery.com

Published 2026-08-25.