best caliper for gemstones

Last updated on April 2, 2023 12:52 pm

The Top Calipers for Gemstones: Your Guide to Finding the Perfect Tool

Gemstones are precious, so it’s essential to measure their dimensions accurately. The right caliper can help you do that with ease. But with so many options on the market, how do you know which one to pick? Here, we’ve compiled a list of the best calipers for gemstones to aid you in your search.

1. VINCA DCLA-0605 Quality Electronic Digital Vernier Caliper

The VINCA DCLA-0605 is an acronym for “Digital Caliper Light and Accurate.” Unsurprisingly, its name lives up to expectations. This caliper has a stainless steel frame and a measuring range of up to six inches. Its accuracy is incredible at 0.0005″ or 0.01 mm. Additionally, it has two modes of measurement – internal, where the tool measures the inside diameter of a piece, and external, where it measures the outside diameter. It’s also easy to read thanks to a large LCD screen, and it comes with a protective case, so it stays safe when not in use.


  • Accurate
  • Durable
  • Easy-to-read screen
  • User-friendly
  • Comes with a protective case


  • Not waterproof
  • Batteries drain quickly
  • The LCD screen could be sharper

2. Mitutoyo 500-196-30 Advanced Onsite Sensor Absolute Scale Digital Caliper

For those seeking an advanced caliper, the Mitutoyo 500-196-30 is a perfect choice. The caliper uses electromagnetic inductive technology to ensure accuracy, which measures to 0.0005” or 0.01mm. Additionally, its data output can be switched between millimeters/inches, so you can use it for international-measurement purposes. Finally, you don’t have to worry about “zeroing” the device anymore. This Absolute Scale caliper measures the absolute position when turned on.


  • High level of accuracy
  • Advanced functions
  • Easy-to-read screen
  • Data output switchable between inches and mm


  • Quite expensive compared to others
  • Batteries need frequent replacement
  • Sometimes struggles to perform automatic shut-off at times

3. EAGems Digital Caliper

The EAGems caliper is built for durability with high-density reinforced carbon fiber composites, making it sturdy even in tough environmental conditions. The measuring range is up to six inches, and this tool promises accuracy to a tolerance of 0.001 inches. Moreover, measurements are in both inches and millimeters, so you don’t have to convert. It also comes with two batteries, a protective case, and an additional user manual to help you make the most out of your new tool.


  • Durable
  • Precise
  • Easy-to-use
  • Comes with accessories like extra batteries and manuals
  • Reasonable price


  • Could be more accurate than 0.001 inches
  • The “on-off” button could be better located
  • Display not backlit

4. Fowler Full Warranty Stainless Steel Digital Caliper

Fowler is a trusted brand in quality measuring devices, and this caliper lives up to the name. The durability of the stainless steel frame means it can withstand most situations, making it an excellent choice for those working with gemstones where accidents are common. It also delivers precise measurements with its accuracy level of 0.0005 inches or 0.01mm. With any technical issues, fear not, because this device comes with a full warranty.


  • Durable
  • Precise
  • Easy-to-read display
  • Comes with warranty
  • Affordable price


  • The battery cover is difficult to remove/replace.
  • Outside jaws tension somewhat randomly
Caliper Accuracy Level Special Features Price
VINCA DCLA-0605 Quality Electronic Digital Vernier Caliper 0.0005″ or 0.01mm Large LCD screen, stainless steel frame, two modes of measuring (internal and external) $25.00
Mitutoyo 500-196-30 Advanced Onsite Sensor Absolute Scale Digital Caliper 0.0005″ or 0.01mm Advanced functions electromagnetic inductive technology, data output switchable between millimeters/inches $140.00
EAGems Digital Caliper 0.001 inch Durable high-density reinforced carbon fiber composites, measurements in inches and millimeters, comes with batteries and a protective case $36.95
Fowler Full Warranty Stainless Steel Digital Caliper 0.0005 inch or 0.01mm Durable stainless steel frame, easy-to-read display, affordable, full warranty included $65.00

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