Jewelry Balances - find the best jewelry scale for your needs
Jewelry Balances and Scales

Jewelry Balances and Scales

Absolute precise jewelry weighing for Gold and Diamonds

 

Jewelry Balances and Jewelry Scales

 

Jewelry Balances and Jewelry Scales from METTLER TOLEDO offer Swiss Weighing Technology for weighing diamonds, other gemstones, g...

 

Jewelry Balances and Jewelry Scales from METTLER TOLEDO offer Swiss Weighing Technology for weighing diamonds, other gemstones, gold and silver. These jewelry scales are built to last and to stay accurate, precise and reliable in even the toughest working environment. You can be confident of highly reproducible jewelry weighing results, and so too can your customer.

Whatever the task in hand, from simple but crucial jewelry weighing, to assays and density determinations, it definitely pays to go for quality of our Gold Balances and Diamond Scales and Balances.


Jewelry Retailing

In markets where jewelry is customarily price by weight, a quality jewelry scales are one sign of reputation that not retailer or manufacturer can do without. All carat and gold precision balances are also available as Legal-for-trade versions.

Precious Metal Assays
Jewelry weighing and re-weighing results are critical in fire assays. Quality of analysis depends on having an accurate jewelry balances and jewelry scales.

Gemstone Weighing
Accurate, rugged and portable; that is what the gemstone trade expects in a carat balance and jewelry scale. Impeccable results, regardless of location, are crucial to business.
All of the Jewelry Balances and Scales can easily be calibrated and adjusted with an internal or external weight to guarantee the accuracy of the result in case of any changes of temperature, humidity, barometric pressure and the gravitational acceleration


 

What is the difference between gold scale and a carat scale?

Weighing diamonds and other gemstones requires higher accuracy than weighing gold and silver. Moreover, the reading is different. The gold scale shows the result by default in kilograms (kg), grams (g), milligrams (mg), while the carat scale shows the weight in carat (ct).Therefore, the readability
of a carat balance is 0.001 ct (0.1mg) and the one of a gold balance is 1 milligram or less. To achieve the higher accuracy on a carat scale, it is always equipped with a wind shield to eliminate any external influence like air flow. This is not required for a gold scale with 0.01 g readability or less.

How do I weigh gemstones or diamonds?

The quality and the market price of a diamond are determined by the 4 Cs: Color, Cut, Clarity and Carat, which is the weight.

The weight is measured in carat (ct), where one ct equals 0.2 g. Due to the small weight and the high price of diamonds, the accuracy of the weighing result must be very high and normally is required with a readability of 0,001ct.

Gemstones, especially diamonds, are very precious, but also rather small. Therefore, Mettler-Toledo always ships a so-called carat bowl with its carat balances. This carat bowl is placed on the weighing pan and tared. Afterwards one or several stones can be added to the carat bowl.

weighing gemstones

How do I weigh gold or silver?

Gold and silver is normally placed directly on the jewelry weighing pan to measure their weight. Moreover, the weight can go up to almost 15 kg for e.g. a gold bar. Therefore it is important to have a very robust jewelry balance, including its weighing pan.

For both materials the reading should be in kilograms, grams, penny weight (dwt) or any other country specific measuring unit. For Gold the readability should be ≤ 0,01g, for Silver ≤ 0,1g.
 

gold and silver balance

What is the difference between carat in gold weighing and carat in diamond weighing?

Carat has two meanings, for gold it is the pureness of the material e.g. 24 carat gold means 99,99% gold content.

For Diamonds it is the weighing measurement unit: 1 carat (ct) equals 0.2 grams (g). For example a two carat diamond has a weight of 0,4 g. As the weighing unit carat is directly derived from the gram, it is also a metric unit, while some country specific units used for weighing gold and silver
(e.g. penny weight (dwt)) are non-metric units.

When do I need a legal for trade version of a gold or carat scale?

The goal of legal metrology is to ensure fair trade and to protect consumers. When the jewelry scale is used in trade or a legally controlled application, it must be set up, verified and sealed in accordance with local Weights & Measures regulations.

For Jewelry Balances and Scales this is typically the case in a retail or wholesale application, when a legal for trade version of your gold or carat balance is required. However, please investigate your local law with your local Weight & Measures authorities. All METTLER TOLEDO Jewelry Balances and Scales can be supplied as legal for trade scale. As every country has slightly different specifications regarding legal for trade balances, please make sure you order and use only a version that complies with the regulations in your country.

How to calibrate a gold or carat scale?

Periodic equipment calibration is the first step to accurate and reliable results. Calibration is all about confidence in jewelry scales measurement results. Jewelry balance calibration ensures that weighing equipment is accurate and reaches standards such as ISO, GLP/GMP, IFS, and BRC. Documented calibration procedures indicate the quality of measurements, and should be performed regularly throughout the balance’s lifetime. Calibration should not be confused with adjustment of a jewelry balance, and must be repeated after adjustment/repairs. Balance and Scale Calibration

How do I clean the gold or carat balance?

Clean the jewelry weighing pan and housing of your balance regularly, using a disposable tissue. The weighing pan and draft shield panels can be cleaned with a damp cloth or soft paper tissue and a mild detergent. Your jewelry scales are made from high-quality, resistant materials and can therefore be cleaned with a commercially available, mild cleaning agent. Use common cleaning agents such as 70% ethanol or isopropanol, or mild detergents. Draft shield panels are made of glass and can be cleaned with a mild detergent or commercial glass cleaner. The jewelry weighing pan and bottom plate are made of stainless steel which 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

Gold Balances and gold scale for weighing gold
diamond carat balance and scale

Gold Balances

Carat Balances

The best choice from METTLER TOLEDO for trading in precious materials like gold and silver, fire assays and retail shops. Our balances are durable, accurate, quick and compact.
Absolute precision from METTLER TOLEDO for diamonds and gemstones: our balances deliver accurate, trustworthy and repeatable results.
Technical Specifications
Readability: 0.001 mg to 1g Capacity: 1.2 g to 23200 g
JP - Premium Performance
Offering automatic internal adjustment, built-in density application and a large green display. Can be AC or battery operated and connects to 2 devices. High-Capacity and High-Resolution models available.
JS - All-round Versatility
Offering one press internal adjustment and a large backlit LCD display. Can be AC or battery operated.
JE - Reduced to the Essentials
Offering one press internal or external adjustment and a large backlit LCD display.
JL - Compact Portability
Offering a robust lightweight design with a small footprint. AC or battery operated.
The right performance for your needs.
Readability: 0.1 mct to 0.001 ct (0.01 mg to 0.1 mg) Capacity: 210 ct to 1600 ct (42 g to 320 g)
JP - Premium Performance
Offering automatic internal adjustment, built-in density application and a large green display. Can be AC or battery operated and connects to 2 devices. High-Capacity and High-Resolution models available.
JS - All-round Versatility
Offering one press internal adjustment and a large backlit LCD display. Can be AC or battery operated.
JE - Reduced to the Essentials
Offering one press internal or external adjustment and a large backlit LCD display.
Gold Balances and gold scale for weighing gold

The best choice from METTLER TOLEDO for trading in precious materials like gold and silver, fire assays and retail shops. Our balances are durable, accurate, quick and compact.

Technical Specifications
Readability: 0.001 mg to 1g Capacity: 1.2 g to 23200 g
JP - Premium Performance
Offering automatic internal adjustment, built-in density application and a large green display. Can be AC or battery operated and connects to 2 devices. High-Capacity and High-Resolution models available.
JS - All-round Versatility
Offering one press internal adjustment and a large backlit LCD display. Can be AC or battery operated.
JE - Reduced to the Essentials
Offering one press internal or external adjustment and a large backlit LCD display.
JL - Compact Portability
Offering a robust lightweight design with a small footprint. AC or battery operated.
diamond carat balance and scale

Absolute precision from METTLER TOLEDO for diamonds and gemstones: our balances deliver accurate, trustworthy and repeatable results.

The right performance for your needs.
Readability: 0.1 mct to 0.001 ct (0.01 mg to 0.1 mg) Capacity: 210 ct to 1600 ct (42 g to 320 g)
JP - Premium Performance
Offering automatic internal adjustment, built-in density application and a large green display. Can be AC or battery operated and connects to 2 devices. High-Capacity and High-Resolution models available.
JS - All-round Versatility
Offering one press internal adjustment and a large backlit LCD display. Can be AC or battery operated.
JE - Reduced to the Essentials
Offering one press internal or external adjustment and a large backlit LCD display.

Services

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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.

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Maintenance & Optimization
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