Carat Scale Sartorius GK703

700 ct x 0.001 ct

Sartorius GK703 digital diamond scale. Precision electronic carat balance with built in motorized calibration.

Availability: 0 left in stock. Discontinued

MSRP: $2,050.00

YOU PAY: $1,899.84

You save $150.16

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They promised you accuracy. They promised you speed, easy of use & affordability. They promised you the perfect balance but only Sartorius delivers weighing nirvana with the new Sartorius Gem Extend Balances. Sartorius GK703 Carat Balance offers 0-700 carats weighing capacity and increments in 0.001 carat divisions (0.001ct, 0.002ct, 0.003ct ...). You can choose from over 20 different weigh modes like grams (140g x 0.0001g) (0.0001g, 0.0002g, 0.0003g ...)plus you can toggle between 5 different weigh modes. The balances also features selectable application programs from percent weighing for formulating solutions; density determination to verify the authenticity of a gem; to count function for counting findings and small beads or rhinestones. Carat weight affects prices of diamonds dramatically and determining the accurate carat weight is critical for anyone in the jewelry industry. Many people think of carat weight as the size of a diamond. However, two diamonds of the same weight can look very different in size. If a diamond is cut deep and narrow, it will look much smaller than another diamond of the same weight that is cut shallow and wide. The jeweler with a Sartorius GK703 on their showcase counter top could be the competitive advantage of a customer choosing your jewelry store over the guy next door. When a customer sees a quality high precision balance in your store this builds confidence the client is getting what they are paying for. Like a fine piece of jewelry Sartorius is a German company and maker of some of the world's finest balances since 1871 when they introduced the world's first pharmaceutical balance. Only Sartorius shatters the limits when "the Guinness Book of World Records" listed the Sartorius Model 4108 as the most accurate balance in the world. Sartorius' excellent reputation and image in the technologically sophisticated field of weighing balances make them a global leader. Sartorius brand image is recognized throughout the world in the jewelry and geologist marketplace as the weighing standard. The GK Series are also quick and easy to clean with its removable side-doors and stainless steel construction. Calibration is simply a press of the button with the motorized built-in internal calibration standard on all Sartorius GK & GW Gem Balances. Intuitive high contrast backlit display with icons to tell you at a glance which application you are using with the new Gem Extend Series. You can also change the language to German, Italian, Spanish and more making the Extend Series the bilingual jewelry balance of the world. Text prompts and cursor keys for navigation make it so simple for you to configure the balance to meet your individual requirements. The latest technology. Sartorius utilizes 21st century technology, such as the unique robotically etched monolithic weigh cell, which ensures long-term high accuracy. The Sartorius Extend series features the latest powerful microprocessor technology, shortening the response times for faster results. Reliable weighing results, all of the time - even under less than ideal ambient conditions, thanks to the Extend´s highly sophisticated digital compensation algorithms. Ease of use. When you need to get a heavy workload of repetitive applications done fast and reliably, day and day out, the last thing you need is a gem balance so complicated that it causes operating errors and wastes your valuable time as a result. Welcome to your new Extend balance comfort zone: a simple, easy-to-understand control panel, key function assignments and the easy-to-read display are ideal for efficient weighing in your lab. User-friendly operation: short, plain-English text prompts and cursor keys for navigation make it simple for you to configure the balance to meet your individual requirements. Outstanding readouts thanks to the backlit and high-contrast display (height of digits: 15 mm). The level indicator is positioned conveniently right next to the display so that checking whether the balance is level becomes "second nature" to the operator. Sartorius has discontinued all GK Carat Scales. The information on this web page is for reference and archival purposes only. If you are in the market to buy a new scale give us a call and we can recommend many other jewelry scales from AND Weighing and Mettler.

Capacity x Readability (g) 100 g x 0.0001 g (Menu code 1.7.1)
Capacity x Readability (g) 100 g x 0.0002 g (Menu code 1.7.2)
Capacity x Readability (ct) 500 ct x 0.001 ct (Menu code 1.7.4)
Capacity x Readability (lb) 0.22085 lb x 0.00001 lb (Menu code 1.7.5)
Capacity x Readability (oz) 3.53361 oz x 0.00001 oz (Menu code 1.7.6)
Capacity x Readability (ozt) 3.22074 ozt x 0.00001 ozt (Menu code 1.7.7)
Capacity x Readability (GN) 1545.955 GN x 0.005 GN (Menu code 1.7.11)
Capacity x Readability (dwt) 64.4148 dwt x 0.0001 dwt (Menu code 1.7.12)
Capacity x Readability (mg) 100176.2 mg x 0.2 mg (Menu code 1.7.13)
Legal for Trade
(NTEP approved)
YES - CofC 05-099 Legal for Trade in gram & carat mode ONLY
NTEP Capacity x Readability (g) 100 g x 0.001 g
NTEP Capacity x Readability (ct) 500 ct x 0.01 ct
Reproducibility (std deviation)
carats (ct)
grams (g)
± 0.001 ct
± 0.0001 g
carats (ct)
gram (g)
± 0.002 ct
± 0.0002 g
Scale interval d 0.0001 g
Verification scale interval e 0.001 g
Response Time (average) 3 seconds
Tare Range FULL to Capacity
Selectable Weight Units
g, ct, lb, oz, ozt, tlh, tls, tlt, Gn, dwt, mg, parts/lb, tlc, mom, K, tol, bat, and MS.  In LFT mode the the GD503 weighs in Carat & Grams ONLY
Selectable Application Programs Mass unit conversion by toggling, tare memory, net total, weighing in percent, counting, averaging.  Counting function not legal for trade
Display Update 0.1 - 0.4 seconds depended upon filter level selected
Display LCD
Allowable Ambient Operating Temperature 20° C to 35° C (68° F to 95° F)
85% RH or less
Sensitivity Drift
(10° - 30°C/50°F-86°F)
± 2 ppm / °C
External Calibration 100g INCLUDED
Pan Size ø90 mm / 3.5 in
(standard round pan)
Draft Shield Chamber Height
(from pan to top of glass door)
133 mm / 5.23 in
Dimensions (entire balance)
W x D x H
200 x 270 x 233 mm
7.9 x 10.6 x 9.2 in
Built-in RS-232 Interface YES - RS-232 interface is standard but the RS-232 cable is optional
Weighing Below Not Available.  Common applications for weighing below the balance include density determination.
AC Power Source AC Adapter 120 VAC
Power Consumption Approx. 16VA (supplied by AC adapter)
Standard Equipment 120V AC Adapter, Dust Cover, Stainless steel weighing pan, 100g external cal mass
Optional Accessories Printer, RS-232 cable, RS-232 to USB converter kit, Rechargeable external battery pack, WinWedge data transfer software
What's included
AC Adapter
Dust Cover
User Manual
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Additional Info
Additional Info
Brand Sartorius
Capacity x Readability 700 ct x 0.001 ct
Weight Modes Carats, Grains, Milligrams, Pounds, Ounces, Pennyweight, Grams, Troy Ounces, KiloGrams
Functions Averaging, Formulation, Percent Weighing
Features Parts Counting, RS-232c, Internal Calibration
Legal for Trade No Legal for Trade
Construction ABS Plastic Housing, Stainless Steel Weighing Pan, Magnetic Force Motor Monolithic Weigh Cell
Calibration Motorized automatic internal calibration
Communication RS-232, Aftermarket DB9 RS-232 Adapter Converter with USB Cable can be purchased
Platform size (inches) 3.5 diameter
Power Requirements 120V AC Adapter included
Manufacturer Warranty (years) 2
Additional info You can toggle between 5 different weigh modes

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