Diamond Scales
Diamond Scale for Carat Weight Determination
Our diamond scales and carat scales offer unparalleled precision for weighing precious gemstones. With high-quality materials, overload protection, and smart features, our scales ensure reliable and convenient performance. Plus, our battery-operated models are perfect for weighing on the go, and you can easily connect our balances to printers or secondary displays for effortless record keeping.
Advantages of METTLER TOLEDO's Diamond Scales
Useful Applications
Built-in weighing applications specifically tailored for diamond weighing are available on every balance, e.g. density determination of diamonds.
Legal for Trade
Almost all of our diamond scales and balances are approved versions according to OIML, NTEP, etc. (model availability is country- specific).
Wide Range of Accessories
Easy device connection makes it simple to add a printer, secondary display or even a PC. All our accessories are backwards and forwards compatible.
Global Service Network
METTLER TOLEDO's service portfolio offers a variety of products based around uptime, performance, compliance and training, helping you to achieve top performance, as well as enhance efficiency and productivity.
Displays Made for Jewelry
The specially angled scale display is easy to read and avoids the reflections that can occur under strong, bright lights. The secondary display allows your customer to see the diamond weight value instantly.
Stable and Robust
Strong, high-quality materials mean your diamond scales will sit solidly on your counter top, and will not move if accidentally bumped. The robust construction ensures a long balance lifetime and ensures a sound return on your investment.
Useful Related Links
Weighing Diamonds and Gemstones
Weighing diamonds and gemstones requires an accurate and reliable diamond scale. Learn how to do it right from the experts. Read more
Automatic Data Collection
Our EasyDirect™ software saves all your jewelry data automatically so manual transcription is not necessary. Review results, perform statistical analyses, generate reports and more. Read more
Learn How to Handle Your Jewelry Test Weights
Your test weights are vital to ensuring accurate jewelry weighing. Be sure you know how to handle weights correctly to avoid error-related costs and breached regulations. Read more
Tips and Tricks for Jewelry Weighing
Get the most out of your jewelry balance with this valuable free poster that contains useful advice on balance location, operation and routine testing. Read more
Check Your Minimum Weight
Ensure you understand the limitations of your jewelry balance. Check the minimum weight you can weigh in our table to ensure your balance meets your jewelry weighing needs. Read more
Explore our Services - Tailored to Fit your Equipment
We support and service your measurement equipment through its entire life-cycle, from installation to preventive maintenance and calibration to equipment repair.
FAQ - Diamond Scales
What scale readability do I need for weighing diamonds?
In general, diamonds are weighed in carats to 3 decimal places so the readability required is 0.001 ct. For very small diamonds, METTLER TOLEDO also offers balances with a carat readability of 4 or even 5 decimal places.
Is scale calibration needed when weighing diamonds?
When weighing diamonds, periodic calibration is necessary to ensure ongoing accurate and reliable results. Calibrating your diamond weighing instrument will ensure that it reaches standards such as ISO, GMP/GMP, IFS and BRC. Documented calibration procedures verify the quality of measurements, and should be performed regularly throughout the balance’s lifetime. Calibration should not be confused with adjustment and must be repeated after adjustment/repairs.
How do I clean my diamond scale?
METTLER TOLEDO diamond scales are made from high-quality, chemically resistant materials and can therefore be cleaned with a commercially available, mild cleaning agent and a damp cloth or soft paper tissue. Use common cleaning agents such as 70% ethanol or isopropanol, or mild detergents. The weighing pan and balance base are made of stainless steel that is robust and chemically resistant, with the exception that it is not compatible with strong acids. Acetone should not be used, even for highly sticky substances, as it is not compatible with plastic handles, glued parts or the screen.
For more information on cleaning your carat scale, download our free cleaning guide.
Can I connect my carat scale to our internal network?
JET carat scales have 3 interface ports — USB host, USB device and RS232 — and are easy to connect to an internal network via the built-in PC Direct function. In addition, JET carat scales offer Bluetooth connection via the optional Bluetooth adapter.