J-Scale JS-VG

The J-Scale JS-VG a low-cost, high-precision gemological and grain scale with 8 different weighing modes, 0.01 carat resolution and advanced counting feature. The JS-VG has a clear hinged wind cover that is also removable for weighing without wind interference, a stylish foam encased jewelry box to keep it safe while traveling and a 20 gram calibration weight to maintain consistently accurate results. The J-Scale JS-VG is an affordable and convenient option for users that need a dependable high-precision gem scale.


  • Hinged, removable wind cover
  • Foam-encased jewelry box
  • Bright backlit red display
  • Advanced counting feature
  • Last unit used memory
  • Easy calibration, weight included
  • 2 year warranty
J-Scale JS-VG
Model Capacity Accuracy
JS-VG 20 g 0.002 g
Included Accessories
Foam-Encased Jewelry Box
Calibration Weight
3 x AAA Batteries
Hinged/Removable Clear Wind Cover
Tare Yes
Hold No
Count Yes
Auto-Off No
Calibration Yes
Overload Indicator Yes
Power Up Segment Test No
Negative Values No
Data Transmission Port No
Technical Information
Units g, oz, dwt, ozt, ct, gn, mg, pcs
Power 3 x AAA Batteries
Display Backlit, Red
Warranty Length 2 Years
Operating Temperature Optimum 10-30°C (50-86°F)
Scale Dimension 4.9″ x 3.1″ x 1″
125mm x 79mm x 25mm
Tray Dimension 1.6″ / 40mm Diameter
Scale Weight


Mode Capacity Resolution
Grams 20.00 g 0.002 g
Ounces 0.71 oz 0.0001 oz
Pennyweights 12.80 dwt 0.002 dwt
Troy Ounces 0.6400 ozt 0.0001 ozt
Carats 100.00 ct 0.01 ct
Grains 309.0 gn 0.05 gn
Milligrams 20,000 mg 2 mg
Counting Pieces