Ohaus Precious Gems balances are the full line of diamond, colored stone and jewelry weighing products ranging from high-precision analytical benchtop balances to handheld scales. Whether you need to measure in carats, grams, troy oz, grains, taels, pennyweights, mommes or other units, Ohaus has a product for your needs. Please browse our selection below.

Ohaus Sapphire 10 The Sapphire 10 is our new portable carat scale from Ohaus. Gem weighing is easier than ever with simple 2 button operation and a large, high contrast LCD display. The laboratory style draftshield ensures accurate weighing in a stable environment. With jewelry weighing units that include g, oz t, ct, gn and dwt, jewelers now have the versatility needed for quick conversion into any precious metal unit. Capacity: 50 ct (10 g) Readability: 0.01 ct (0.002 g) Units: ct, g, oz t, dwt, gn, taels (3), pc, oz

Specifications Capacity: 10g (50ct) Readability: 0.002 g (0.01 ct) Weighing units: ct, g, oz t, dwt, grains, taels(3), pc, oz Weighing modes: Parts counting Repeatibility (Std. Dev.) (g): 0.002 Linearity (g): plus/minus 0.002 Tare range: To capacity by subtraction Over range capacity: 103% Stabilization time (seconds): 3 Operating temperature range: 50F to 104F/10C to 40C Operating Humidity Range: 10% to 85% RH Power requirements: AC Adapter: 100, 120, 220, 240 VAC 50/60 Hz or 9V battery Display (in/cm): 0.7/1.8 Display type: LCD Pan size (in/cm): 3/7.6 Dimensions WxHxD (in/cm): 6.75 x 2.4 x 8.25/17.1 x 6.2 x 21 Net Wt. (lb/kg): 1.8/0.8 Shipping Wt. (lb/kg): 3.5/1.6 Auto shut-off: Programmable on/off Calibration: Digital from keypad Scoop size (L x W x D) (in/cm): 1.5 x 1.2 x 0.4/3.7 x 3.0 x 0.9