7 best carat jewelry scales

Carat jewelry scales are precision weighing instruments specifically designed for measuring the weight of gemstones, particularly diamonds. These scales are essential tools in the jewelry industry, ensuring accurate and consistent measurements of precious stones. Here's what you should know about carat jewelry scales and their relevance to measuring tools:

  1. Purpose: Carat scales are used primarily for measuring the weight of gemstones in carats. One carat is equivalent to 200 milligrams, and this standardized unit of measurement is crucial in determining the value and quality of gemstones.

  2. Accuracy: Carat scales are highly accurate and sensitive instruments, capable of measuring very small increments of weight.They are designed to provide precise readings to the nearest decimal point, ensuring that even slight variations in gemstone weight can be detected.

  3. Digital Scales: Modern carat jewelry scales are typically digital, featuring digital displays for easy reading. These scales are known for their reliability and accuracy, making them indispensable tools for gemstone professionals.

  4. Tare Function: Many carat scales come equipped with a tare function, allowing users to subtract the weight of the container or tray holding the gemstone. This ensures that the scale measures only the weight of the gemstone itself, excluding any additional weight.

  5. Calibration: To maintain accuracy, carat scales need regular calibration. Calibration ensures that the scale is measuring weights correctly and is essential for reliable results.

  6. Portability: Carat scales are often portable and compact, making them easy to transport and use in various settings, including jewelry stores, gemological laboratories, and workshops.

  7. Capacity: Carat scales typically have a relatively low weight capacity compared to other types of scales. They are designed to handle the precise measurement of small gemstones and are not suitable for weighing heavier items.

  8. Units of Measurement: In addition to carats, these scales may also provide measurements in other units, such as grams, ounces, and pennyweights, to accommodate different measurement preferences and standards.

  9. Gemstone Grading: Accurate weight measurements obtained with carat scales are crucial for determining the value and quality of gemstones. Gemstone professionals use these measurements as part of the grading process, along with other factors like color, clarity, and cut.

  10. Maintenance: Proper maintenance of carat jewelry scales involves keeping them clean, handling them with care to avoid damage, and ensuring that they remain calibrated for accurate results.

In summary, carat jewelry scales are specialized digital scales designed for measuring the weight of gemstones, particularly diamonds. They are highly accurate, portable, and essential tools in the jewelry industry for assessing the value and quality of precious stones. These scales play a critical role in gemstone grading and ensuring that buyers and sellers have precise weight measurements for their transactions.

Below you can find our editor's choice of the best carat jewelry scales on the market
  

Mettler Toledo JL6001GE/A Gram Scale - Legal for Trade - Gram - Ounce - DWT - Carat - pound(lb) - Jewelry Scale - 6200 gram (gr.) Capacity - 0.1 gr Readability

Based on 8 reviews Check latest price

Product description

This Mettler Toledo scale provides an extremely accurate and precise reading in a very compact design. This scale can weigh up to 6,200 grams with an accuracy of 0.1 grams. This scale is Legal for Trade, which is unheard of with a price like this. This is just one of the many features that this scale has to offer. Here are some of the features you should expect with any Mettler Toledo scale: Accurate and reliable: METTLER TOLEDO guarantees accurate results for every weighing job. Compact design: JL-G balances have a small footprint - ideal, when space is limited. The auxiliary display can be mounted on the balance easily (NOT INCLUDED). Back-lit display: The display on all jewelry balances guarantees that the results can be read easily and securely. Easy reading for you - and with an auxiliary display for your customers. Built-in applications: All jewelry gold balances have several applications already included in the software: Basic weighing, piece counting and percent weighing. Legal For Trade: All balances are \"Legal For Trade\", also known as approved, which is required in applications where the product is sold by weight. All \"Legal For Trade\" balances have undergone independent testing to verify the scale meets the manufacturer's specifications.

  • Weigh grams, pennyweight (dwt), ounce (oz.), Troy Oz., Carat, and pound
  • Weight up to 6200 grams at a time and up to 0.1 gram readability
  • Made by Swiss company, Mettler Toledo
  • Legal for Trade, 1 Year Warranty
  • Adapter Included (Capable of being used on Battery Power)

User questions & answers

Question: Good morning and before nothing sorry for my bad english.. the capacity of this balance is 6.2 kilograms right? thanks for ypur atention and Thanks
Answer: Yes that is correct.
Question: Does this product come with a certificate of conformance
Answer: Yes it does. Jeffrey
Question: Could you pls tell me can it work with 220v electric socket
Answer: I do not think so. Though it is from Europe and sometimes appliances can accept 220v. But I will warn you against the scales purchase because tech or repair support is HORRIBLE!!! Almost non existant
Question: are the power and usb cable come with it
Answer: It does come with a power cord. The unit does have an RS232 port which you can connect to a computer via a serial to serial cable or serial to usb cable, however, the cable needed to connect it is not included.

Jeweler's Scale: New 100 x 0.01g DIGITAL JEWELRY SCALE Weigh Loose Diamond/Gemstone CARATS & More! Raw, Rough, Uncut or Cut Gems, Lapidary Materials, & other Stones!

DigiWeigh

Based on 19 reviews Check latest price

Product description

The perfect accessory for weighing small treasures such as loose diamonds, gemstones, coins & scrap jewelry, this DigiWeigh jewelry scale is popular among professionals as well as hobbyists. The CARAT mode is perfect for rough OR faceted stones, lapidary slabs, et cetera; The GRAM and OUNCE modes are perfect for weighing scrap jewelry, bullion & other precious metals. Ounce mode is also great for measuring food portions. The GRAIN mode is commonly used to weigh archery arrows & gunpowder for reloading. High quality strain gauge load cell system makes it accurate in full capacity range. High density ABS housing and metal support makes it very durable. Large high contrast LCD display makes the readouts clear to read. TARE function makes it much easier to weigh liquid or powder. Attractive blue back light used in dark. User can switch off the back light to save power. Crystal clear cover can be also used as tray. One 100 gram calibration weight is included. Plus Free Removable reloading tray is included with the scale for weighing powder and other weight sensitive items! The tray has an easy to pour side for easy filling and emptying!ight Checking.

  • Choose from 4 different modes: Carat (ct), Grain (gn), Gram (g), Ounce (oz)
  • Capacity & Accuracy: 500 x 0.05 ct; 1543 x 0.1 gn; 100 x 0.01 g; 3.527 x 0.001 oz
  • Bright blue, high-contrast LCD Display makes it very easy to read
  • Clear, durable cover protects the weighing platform when scale is not in use, and doubles as an expansion tray
  • AAA batteries included for FREE! Plus, this scale comes with a WARRANTY Plus Free Removable Reloading Scale

User questions & answers

Question: Hi, I need to know how long in inches is the crystal tray to weigh and hold jewelry which may not be bend and is large in dimensions, thanks
Answer: 3 5/8 inches.

Gemoro Platinum PCT251 Digital Counter Top Portable Carat Jewelry Balance Scale

Based on 7 reviews Check latest price

Product description

The engineers at GemOro have created a new generation, superior carat scale with unique features, style, precision, durability and more! This extra precision carat scale offer accuracy of 0.005ct, with a capacity of 100ct and 250ct! The scale functions are controlled by a convenient, easy to use 4-button control panel. Its innovative, low profile flip up draft shield easily expands to accommodate the weighing of large stones or parcels. The rubberized compact carrying case protects the scale while in transit and holds the scale, calibration weight, Swiss-style diamond tweezers, diamond scoop, stainless steel weighing platform and universal voltage 100-240V AC adaptor.

  • 250ct x 0.005, g, dwt, oz, ozt and gn
  • Large stainless steel weighing platform & bright blue backlit display
  • Push button digital calibration, tare, memory, low battery indicator and battery saving auto-off functions
  • Innovative low profile tinted draft shield manually expands for weighing large diamonds, gemstones and parcels
  • Durable ABS construction with EZ-grip rubberized paint finish

User questions & answers

Question: Does this scale weigh milligrams (0.0001g
Answer: The female threaded piece of the peephole has a small flange to cover (inside) the raw wood exposed by the required hole you make to install the peephole. The knocker surrounds the outside portion of the peephole. The inside of the door peephole uses the threaded portion to finish the installation, looks just fine and works well.

Jennings JSR-200 Digital Pocket Scale 200g x 0.01 Gram JScale Jewellery Carat

Jennings

Based on 45 reviews Check latest price

Product description

Myweigh is a manufacturer of high quality scales and scale accessories. Myweigh has some of the most reputable scales on the market. To find what you are looking for please select from the Category above or click the view all icon to see all our scales. Our products are for wholesale purchases only. If you would like to purchase one of our scales from an online retail location please use the links on the bottom of the page.

  • Units: Reads in Grams, Ounces, Troy Ounces, Pennyweight, Carats, Grains
  • Easy to Read LCD Display, Stainless steel platform, Tare & Auto-Off Feature
  • Advanced Parts Counting Function
  • Scale Size: 3.0" x 4.75" (8cm x 12cm)
  • 20 Year Warranty

GemOro Platinum PCT101 Carat Scale (100ct x 0.005 ct, g, dwt, oz, ozt and gn)

Based on 29 reviews Check latest price

Product description

PREMIUM CLASS CARAT SCALE



The engineers at GemOro have created two new generation, superior carat scales with unique features, style, precision, durability and more! These extra precision carat scale offer accuracy of 0.005ct, with a capacity of 100ct and 250ct! Each scales functions are controlled by a convenient, easy to use 4-button control panel. Its innovative, low profile flip up draft shield easily expands to accommodate the weighing of large stones or parcels. The rubberized compact carrying case protects the scale while in transit and holds the scale, calibration weight, Swiss-style diamond tweezers, diamond scoop, stainless steel weighing platform and universal voltage 100-240V AC adaptor.



- 100ct x 0.005, g, dwt, oz, ozt and gn

- Parts counting function

- Large stainless steel weighing platform & bright blue backlit display

- Push button digital calibration, tare, memory, low battery indicator and battery saving auto-off functions

- Innovative low profile tinted draft shield manually expands for weighing large diamonds, gemstones and parcels

- Durable ABS construction with EZ-grip rubberized paint finish

- Includes a rubberized protective travel / storage case with compartments containing scale, stainless steel calibration weight, stainless steel weighing platform, scoop, AC adaptor and Swiss-style locking diamond tweezers

- Powered by long-life included AAA batteries or its supplied universal voltage 100-240V AC adaptor

- 5 Year limited replacement warranty

  • EXTRA PRECISION CARAT SCALE - Offers accuracy of 0.005ct, with a capacity of 100ct and 250ct!
  • EASY TO USE - 4-button control panel.
  • FLIP UP DRAFT SHIELD - expands to accommodate the weighing of large stones or parcels.
  • RUBBERIZED COMPACT CARRYING CASE - Protects the scale while in transit.
  • INCLUDED ACCESSORIES - Calibration weight, Swiss-style diamond tweezers, diamond scoop, stainless steel weighing platform and universal voltage 100-240V AC adaptor.

User questions & answers

Question: Does this scale weigh in Grains ??, in 0,1 or 0.01 grains
Answer: No you can't, it's a great little viwer.
Question: does it weigh in grams? If so whats the max weight in grams and at what accuracy
Answer: between holes center is 3.5".
Question: Does this weight as low as 0.0001g
Answer: I can't really determine on my installed knocker whether the fit will be secure or not for the 1/2" thickness. I've had it for a while now and don't remember the exact length of the stem.

Citizen CZ1200 NTEP Approved Jewelry Scale

Citizen

Based on 12 reviews Check latest price

Product description

The Citizen CZ 1200 is a NTEP Certified Legal for Trade Jewelry and Gold Scale. This precision scale has a 1200 gram capacity with 0.1 gram resolution plus carat (6000.0 ct x 0.5 ct), pound (2.6455 lb x 0.0005 lb), pennyweight (771.6 dwt x 0.1 dwt), ounce (42.325 oz x 0.005 oz) and troy ounce (38.580 ozt x 0.005 ozt) weighing units. Programmable backlight, RS232, AC adapter, stainless platform and more.

  • Class II NTEP Approved Legal For Trade
  • 1200 gram capacity x 0.1 gram resolution plus five additional weighing units.
  • Programmable backlit display.
  • RS232 serial port for communication with computers, printers and monitors.
  • 1 Year Manufacturer's Warranty.

User questions & answers

Question: Are these scales legal for georgia
Answer: There is a light collecting prism, it should be a smokie screen but great detail.
Question: I bought this scale due to the description stated that the scale communicates with monitors. I haven't been able to find an adapter to make this work
Answer: I guess can paint, it is just hard plastic
Question: Can this scale operate on battery power? If so, is a rechargeable battery included
Answer: this is how the prism works. You installed perfectly.

PROINTxp High Precision Jewelry Scale PTPT-500, 500 by 0.01Gm with Backlit LCD Display (White)

Based on 38 reviews Check latest price

Product description

PROINTxp High Precision Jewelry Scale PTPT-500, 500 by 0.01Gm with Backlit LCD Display (White)





The PROINTxp series digital scales would be the right choice for people who are seeking a high-tech, portable pocket scale. It's durable and compact. The Digital Scale is perfect for precious weighing on-the-go for all kind of items or objects such as food, tablets, gemstones, coins, jewelry, gold, silver, etc. Smooth stainless-steel makes it shine. The bright backlit LCD display helps make the numbers easy to read.

  • Durable and Compact Jewelry Scale
  • 2pcs Transparent lids protect the delicate weighing platform
  • Equipped with 2 lids can be also worked as weighing tray.
  • The backlit LCD display helps make the numbers viewable and easy to read
  • 3.9*3.9inch Stainless steel platform can be enough for precious weighing. Max capacity upto 500g and incremental in 0.01g.

User questions & answers

Question: what kind of batteries does this scale use
Answer: Hi, Yes they are Legal For Trade in US all States, Make sure you order the accuracy you need like 0.1 gram or 0.01 gram. Thanks, Pete, Allscales (281) 656-2666
Question: i am having trouble calibrating this scale. How long do you have to wait before adding the second weight? It never seems to stop blinking
Answer: Hello Caroline, You would need an RS-232 cable in order to connect the scale to a computer or printer. I would suggest talking to the manufacturer tech support for the specifics on how to hook it up. Their phone number is 732-777-0900. Please let us know if you have any further questions. Thank you. Have a great day.
Question: what size batteries does this use? are they included? can you plug into wall
Answer: No it does not operate by battery, just 12v plug
Question: What size calibration weight does this scale call for
Answer: It weighs in grains weight 0.00
Question: Is it possible to turn the auto-off function off? This "feature" on scales is my worst enemy
Answer: It's really made to be a carat scale but it can weigh in grams. It only goes up to 20 grams and it reads out to three decimal points (0.005).
Question: Is this ntep rated as legal for trade
Answer: The PCT101 carat scale is accurate to .005 carats; which translates to .001 grams accuracy. Hope this helps.
Question: Don't know how to draft shield on gemoro pct251. not sure if it's button controlled or the product is defective. need help in opening draftshield
Answer: No, I does not. I was quite unhappy with this scale too. It was returned.
Question: How can I request warranty
Answer: Thank you but the picture shows a glass tray not a plastic one and it seems a large tray, 5" is very very small for jewelry that measures 7 in, thanks anyways for the answer but the picture is then deceiving

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