Free tools · no account · nothing for sale
Know what it is,
and what it is worth.
Weigh a chain and see what the gold in it is actually worth at today’s price. Read the stamp inside a ring. Convert a size between four countries. All of it free, and none of it run by anyone who wants to buy your jewellery.
Gold, per gram, today
Waiting for the market
Fetching the live price…
This is the value of the metal, not an offer. A buyer will pay a percentage of it — see the ranges.
The tools
Every one runs in your browser. Nothing you type is sent anywhere.
How much is my scrap gold worth?
Weigh it, pick the karat, and see the value of the metal at the live gold price — then what a buyer is likely to hand over, which is a different number.
How much is sterling silver worth per gram?
Sterling, coin, Britannia and fine silver at the live silver price — including why small silver items are often worth less than the trouble of selling them.
How much is a platinum ring worth?
PT950, PT900 and PD950 at live prices. Both metals are denser than gold, which is why the weight surprises people.
What is my ring size in UK, US or European sizes?
Convert between US, UK, European, Japanese and millimetre sizes — starting from the only measurement that is not a convention.
What does 585 mean, and how many karats is it?
Convert karats to parts per thousand and back, and see how much actual gold sits inside each standard.
How many millimetres is a 1 carat diamond?
Carats are weight, not size. Convert between the two for eleven shapes, and see how much of the face-up size a shape gives back.
How much does a 1 carat ruby weigh compared to a diamond?
The same size stone weighs different carats in different minerals. A ruby is denser than a diamond, so it looks smaller for its weight.
Why this site is different
Nearly every gold calculator online is run by somebody who wants to buy your gold.
Their numbers are not wrong, exactly. They are the opening position in a negotiation you did not know you had entered. This site has nothing to sell and nobody to refer you to, so it can tell you the part they leave out: what the metal is worth, and how much less than that people actually pay.
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.
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.
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.
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.
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.
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.
Nothing is collected
No account, no email, no analytics cookie, no adverts and no third-party scripts. What you weigh stays in your browser.
The gallery
Visual references for the things that are quicker to look at than to read about.
What does 925 mean on jewellery?
Every mark you are likely to find, sorted by what it actually claims — solid metal, a plated layer, or nothing precious at all.
What are the different diamond shapes called?
Every shape drawn to scale at the same carat weight, so you can see which ones spend their weight on size and which spend it on depth.
How long is an 18 inch necklace?
Choker to opera, drawn on the same figure, with the measurement in inches and centimetres.
Worth reading before you sell anything
The most expensive misunderstanding in the trade, and the one every calculator on the internet quietly encourages.
5 min read
The chain from your kitchen drawer to the refinery, who takes what along the way, and why the same chain gets four different prices.
6 min read
What a stamp does and does not prove, and the checks you can do at home without damaging anything.
5 min read
Jewelers Gallery is an independent reference site. It is not a jeweller, not a dealer and not a buyer, it has no connection to any business trading under a similar name, and it cannot value your jewellery — only the metal in it, from a weight and a purity you supply. For anything that might be worth more than its metal, see a qualified appraiser who is not also offering to buy it.