Cactus2000 | About | Email

Gold in jewellery

$ / oz $ / €
€ / g € / $
total mass g
gold content
mass of gold g


Jewellery contains varying quantities of the metall gold. The caratage is either given in Carat (ct) or in thousandths (e. g. 585/1000). One carat is 1/24 of the total mass. Pure gold has a caratage of 24 ct.
This calculator determines how much gold an alloy of known caratage contains. When you know the price of gold, you can calculate the value of the gold in the jewellery.
Please note that usually the value of the jewellery is higher than the value of the pure gold, since the artistic work is not counted. In addition, the value of the other compounds of the alloy are not considered. As examples this could be copper, silver or platinum.

Usage: Type the mass of your jewellery into the corresponding field. You may determine the mass with letter scales. Then give the caratage. There exists a selection of common values already. The caratage you find on a stamp on the jewellery.
The price of gold you can either give in dollar per ounce troy or in euro per gram. It depends on the currency in which you give the price, in which currency the value is calculated. You may either give the price of gold in both units. In this case the exchange rate between euro and dollar is calculated, by which you may control your input. Or you give one price and the exchange rate. If only one price is known, the value of the jewellery is calculated only in that curency. The fields with input values are shaded in light green while fields with calculated values are coloured in pink.
After a mouseclick on any free space of the window or on the "calculate" button the calculation is performed. Move the mouse over a unit or click on it to read its full name.
For another calculation with just one new value, you just have to change this input. For calculations with completely different values you may click the "reset" button, eventually.

Example: You want to determine the value of the gold in a golden chain of 14 carat with a mass of 23 gram. Type "23" into the field for the mass and choose the caratage "585/1000, 14 ct". After a mouseclick on any free space of the window or on the "calculate" button you can read already, that the chain contains about 13.5 grams of gold.
The actual price of gold is 784 US$, as example, and the exchange rate is 1.34 US$/€. Type these values into the corresponding fields. After another mouseclick on any free space of the window or on the "calculate" button you can read, that the value of the gold in the chain amounts to 253.10 € or 339.15 $.

- Large and small numbers are written exponentially. As example 2.3e5 = 2.3⋅105 = 230000 or 4.5e-5 = 4.5⋅10-5 = 0.000045.
- There is no warranty for the conversion. Cactus2000 is not responsible for damage of any kind caused by wrong results.
- Please send an email if you have suggestions or if you would like to see more conversions to be included.

- A collection of all Cactus2000-converters running offline may be ordered for a price of € 15.-. A test version is available for download for free.

© Bernd Krüger, 18.10.2008

Valid HTML 4.01 Transitional

Unit converters

Search for Cactus2000 unit converters:

New in July 2014
- Heat index
- Speed (calculations)

Physics (A-F)
Physics (G-P)
Physics (R-W)
Date and time


Follow Cactus2000 on
Google+, Twitter

Lerning languages
Offline products
Conjugation tables
- Time of sunset
- Vehicle licence plates

About Cactus2000

Cactus2000 Euro converter:
Now with
19 old currencies

NEW: Litas
To the top

Bernd Krüger, 2016