Jewelry Balance Sartorius GD503

100g x 0.0001g

Sartorius GD503 Class II Balance legal for trade digital jewelery balance.Class 2 electronic gem scale readable to 0.001 carats.

Availability: 0 left in stock. Discontinued

MSRP: $1,995.00

YOU PAY: $1,429.00

You save $566.00

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We have no remaining stock on the GD503 and Sartorius has discontinued production. At this time there is no direct replacement if you require a legal for trade (LFT) balance under the Sartorius brand. If you do not need LFT please review the Sartorius Entris64-1S or Entris124-1S. Information below this page is for archive purposes only for customers researching the specification on the GD503 that they might already own.

Looking for a balance that offers 100 gram weighing capacity and reads to 0.0001 grams or 500 carats x 0.001 carats the Sartorius GD503 is awesome. Totally unbelievable value. 500 carat balance readable to 0.001 carats that is Legal for Trade or if you want to weigh in grams 100 grams with readability to 0.0001 grams - YES 4 decimal places in grams. Sartorius GD503 comes with the 100 gram external calibration weight and dust cover at no additional cost.

GD503 balance comes with a 100 gram ASTM class 1 calibration weight, dust cover and RS-232 interface for connection to a computer or optional Sartorius YDP20-OCE printer. Only the Sartorius GD-503 comes standard with these items while competitive models typical charge big money for the calibration weight and a dust cover. Plus the GD503 has a 2 year manufacturer warranty. We dare you to compare and when someone tells you they can offer a similar balance for less give us a call and we'll help you understand what they are trying to sell you. It won't be made in the USA, it won't come with the calibration mass nor dust cover and it won't perform like the GD503 for the price we are selling the GD503.

Sartorius GD-503 is Legal for Trade. Customers told us they needed a high precision jewelry scale they could sell diamonds, precious and semi precious stones at trade shows like the Tucson JCK Gem Show. Some states like Arizona, New York, Florida don't play any games when it comes to weighing - you either have a Certified Class 2 balance to sell gems by weight or you're not selling any gems by weight until you get a Legal for Trade Scale.

When you're buying precious gems and minerals by the gram or carat they must be measured on an ntep scales. Investigators from the Arizona Department of Weights and Measures spend several days every year at the Tucson Gem and Mineral Show, where they checked scales used by dealers who were selling items by weight. At the 2006 Tucson Gem and Mineral Show they confiscated 145 scales that were being used illegally because they did not conform to NTEP standards. Arizona Weights and Measures doesn't fool around and they can impose Civil penalties under section 41-2115 up to $50,000 in some situations. Recently in Albany, New York inspectors from the county's Division of Weights and Measures raided a store for using the wrong scales and the owner faces fines up to $70,000.

At gem & lapidary trade shows you'll probably not be able to sell your gems unless they have a Legal for Trade type approved balance like the GD-503 that can meets the inspector's requirements. The GD503 weighs up to 500 carats weighing capacity with readability to 0.001 carats. In the Legal for Trade mode the GD503 offers a second weigh mode in grams - 100g x 0.0001g. Yes, that is correct the balance increments in in four decimal increment in the gram weigh mode.

A big selling point on the GD-503 in the low profile 5.23 inch high draft shield chamber (height from pan to top of glass door). The two side doors and top door slide open for fast & easy access to the weighing chamber. Jeweler's have limited space in their stores and the small footprint makes the Sartorius GD503 a big selling point.

We believe the GD503 is the best 3 decimal place carat scale on the market for price, performance, features and quality. Those needing to weigh 0.0001 grams we doubt you can find anything comparable. Made in the USA and engineered & designed by the best metrology engineers that Göttingen Germany has at Sartorius' advance weighing technology research lab.

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
120V AC Adapter
Dust Cover
Stainless steel weighing pan
100g external cal mass
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Additional Info
Additional Info
Brand Sartorius
Capacity x Readability 100g x 0.0001g
Capacity x Readability (dual range) 100g x 0.001g (NTEP Mode)
Readability 0.0001 g
Weight Modes Carats, Grains, Milligrams, Pounds, Ounces, Pennyweight, Grams, Troy Ounces
Functions Averaging, Formulation, Percent Weighing
Features Legal For Trade, RS-232c
Legal for Trade Yes Legal for Trade
Construction ABS Plastic Housing, Stainless Steel Weighing Pan, Magnetic Force Motor Monolithic Weigh Cell
Calibration External - 100g calibration mass INCLUDED
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 Legal for Trade Class II Balance

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