---
product_id: 1144855
title: "Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included"
brand: "smart weigh"
price: "$71.76"
currency: USD
in_stock: true
reviews_count: 8
category: "Smart Weigh"
url: https://www.desertcart.us/products/1144855-smart-weigh-gem20-20g-x-0-001-grams-high-precision
store_origin: US
region: United States of America
---

# calibration weights included 0.001g ultra-precision protective flip cover Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included

**Brand:** smart weigh
**Price:** $71.76
**Availability:** ✅ In Stock

## Summary

> ⚖️ Precision that pays off—because every milligram counts!

## Quick Answers

- **What is this?** Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included by smart weigh
- **How much does it cost?** $71.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1144855-smart-weigh-gem20-20g-x-0-001-grams-high-precision)

## Best For

- smart weigh enthusiasts

## Why This Product

- Trusted smart weigh brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tare & Go:** Zero out containers instantly with the tare function for hassle-free net weight readings.
- • **Milligram Mastery:** Experience pinpoint accuracy down to 0.001 grams—perfect for precious metals, gems, and exacting lab work.
- • **Compact & Protected:** Sleek, pocket-sized design with a flip cover that safeguards your scale on the move.
- • **Calibrated Confidence:** Includes certified calibration weights to maintain flawless precision every time you weigh.
- • **Multi-Mode Measurement:** Switch effortlessly between grams, ounces, carats, and more to suit any professional need.

## Overview

The Smart Weigh GEM20 is a high-precision digital milligram scale offering 0.001g accuracy and a 20g capacity. Designed for professionals handling jewelry, gemstones, pharmaceuticals, and supplements, it features multiple measurement units, built-in calibration weights, a protective flip cover, and a convenient tare function. Compact and portable, it ensures reliable, repeatable measurements backed by a 60-day warranty.

## Description

Precision does not get any more precise with this scale! The Smart Weigh Digital Pocket Scale is not only compact and convenient but works like a charm. Combines high precision with the ultimate in convenience. Features a flip open cover to protect the weighing platform. We got you covered! The scale features multiple measurement modes which will surely meet your needs. Includes: g / oz / ct / ozt / dwt / gn and measures up to 20 grams in increments of 0.001 grams. On the go! Carry it with you wherever you go and won’t take up too much space. It is sleek, compact, and lightweight. The convenient tare function allows you get the net weight of a product you are weighing.

Review: Powerful Precision Weighing Scale When Accuracy is Critical - This is a fabulous High Precision Digital Weight Scale. I am most pleased I can push a button, weigh my measuring unit, then hit the button on the left, which subtracts the weight of the weighing tray so that the screen reads 0.000 g and then, since I need to have precisely 0.015 grams of a powder, easily get this precise amount. Then, with a large flip open cover, I can leave the weighing tray on the unit, my weighed power in the weighing tray, put down the cover to protect the powder, and have this meager dosage ready to take with my 120 mg. dosage of Armour Thyroid medication for my thyroid at 4:00 a.m. I don't even have to find my bifocal glasses to see anything! Doing this, this way, saves me over $50 monthly. , I couldn't have asked for a better product to assist me. I did a lot of research to find the proper scale, and this one easily meets all my powder needs for any of my multiplicity of supplements where the dosage is 1/8th of a teaspoon or less up to 20 grams. Currently I use other teaspoons which I level off with a knife. And, once I figure out how to use a drop, a smidgen, a pinch, a dash or a tad, I will be using those measuring tools with this unit as well. Additionally, I could use this unit because it also weighs oz, ct , ozt, dwt, gn, and utilized high precision sensors to ensure the advanced accuracy of 0.001 grams and capacity of 20 grams. The set comes with a set of tweezers, weighing tray, with a dipping area if you are working with fluids, and two 10 kg calibration weights. The unit also features a flip open cover to protect the scale's platform besides a back lit screen for easy visibility. In fact, since the summer of 2014 I have been having hypothyroid issues, where my dosage of Armour Thyroid has had dramatic swings, the loss of 40 lbs. over 3 months, the weight gain of 40 lbs over 2 months, and intense chronic fatigue, etc. Then, when I learned (no benefit of my MD or Pharmacy) to separate iron and magnesium by 4 hours before as well as after my thyroid pill consumption, my thyroid medication settled down to more normal numbers. But, my thyroid is still in a state of flux. I also commenced dicing a raw beet a day to assist my thyroid as well as eating 2 Brazil Nuts daily for my selenium level. This caused my thyroid medication to be reduced to 135 mg. daily from 150 mg and may again decline as my system gets regulated with beets, Brazil Nuts, and no magnesium or iron within 4 hours either side of my thyroid medication. Yet, this dosage of 135 mg. is not a normal one and becomes 2 prescriptions, and thus costs me for 2 prescriptions. Got to love the drug companies who've really figured out how to .... I refused to purchase the 0.015 mg dosage (the size of a tiny nail head). But, I've a goodly supply of 300 mg thyroid medications, which I was slicing into 1/2 or 150 mg which would cost me for 1 prescription and last for 2 months, thus saving me $50. My dosage used to be 90 mg. This kept my medical cost reasonable. So, I ground up the excess supply into powder. Each evening, I use my Heathrow Scientific HD 15909 Spatula with Flat End and Spoon End, 9" Overall Length, to select a wee amount of this powder, and put it in a measuring cup on this scale. It is so easy to get precisely 0.015 grams. If I need tweezers to select a smaller amount of powder, I do that as well. One of the greatest features of this Smart Weigh is the fact you can easily weigh the tare (weighing tray), and once you have that, that tare weight unit is known by the system. Then, push the button on the left, your scale will read 0.000. This makes it so easy for me to read precisely 0.015 grams. I truly hope this information is of help to you. And if any of you have thyroid issues, it doesn't matter which thyroid medication you use, the thyroid medication will not work correctly unless you separate by 4 hours your taking of magnesium or iron, and iron is in everything except for milk products and a few candies. Even yogurt which has fruit on top has iron in it and will interfere with your medication. This period is 8 hours and not a millisecond less! I'm so glad I made this purchase and it has a place of honor on my kitchen counter.
Review: Perfect for accurately portioning medications for my cat! Very accurate for milligram amounts. - I got this tiny scale to accurately split pills for my cat. I found that my pill splitter was extremely inaccurate, and when the dose increased to 3/4 tablet, a pill splitter would not work. I can now accurately cut a pill into several pieces and get to the correct dose by adding small pieces to the little measuring pan to get to the 67mg dose I need. Very quick and easy. It comes with two calibration weights - one varied a tiny bit from 10g, but one was exactly 10g and works for periodically checking the accuracy. I have been using the scale daily for 3 months and it continues to be very accurate. I could not manage the dosing without it. The little pan is especially helpful. Keep in mind that the total capacity is only 20 grams, which is less than an ounce. It is definitely not a kitchen scale.

## Features

- Professional Precision for High-Value Items: This milligram scale delivers 0.001g accuracy, making it perfect for weighing gold, gemstones, and fine jewelry.
- Reliable for Medicine & Lab Use: Its high-sensitivity sensor is ideal for precisely measuring drugs, pharmaceutical powders, and chemical supplements.
- Built-in Calibration for Accuracy: The kit includes calibration weights to ensure your gold, gems, and medicine measurements remain perfectly accurate over time.
- Portable & Protective Design: A built-in flip cover protects the delicate platform, keeping it safe for professional use in jewelry shops or medical environments.
- Peace of Mind 60-Day Warranty: Your purchase is backed by a 60-day warranty, ensuring a hassle-free experience and guaranteed satisfaction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #9,115 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Calibration Weights |
| Brand | Smart Weigh |
| Color | Silver |
| Customer Reviews | 4.4 out of 5 stars 5,595 Reviews |
| Display Type | LCD |
| Form Factor | Mini |
| Material | Stainless Steel |
| Weight Limit | 20 Grams |

## Product Details

- **Brand:** Smart Weigh
- **Color:** Silver
- **Display Type:** LCD
- **Form Factor:** Mini
- **Weight Limit:** 20 Grams

## Images

![Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included - Image 1](https://m.media-amazon.com/images/I/71U1V9rxwzL.jpg)
![Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included - Image 2](https://m.media-amazon.com/images/I/71hOAM0FrWL.jpg)
![Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included - Image 3](https://m.media-amazon.com/images/I/71mx7QXJu7L.jpg)
![Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included - Image 4](https://m.media-amazon.com/images/I/81ZasicWJ+L.jpg)
![Smart Weigh GEM20-20g x 0.001 Grams, High Precision Digital Milligram Jewelry Scale, Reloading, Jewelry and Gems Scale, Calibration Weights and Tweezers Included - Image 5](https://m.media-amazon.com/images/I/81g0neUCVkL.jpg)

## Questions & Answers

**Q: does it weigh in mg**
A: No this scale doesn't even register until you get up to 5mg, I have placed many an item below that weight on this alleged +/- .005 error rate scale, and frankly I wonder how the hell is it legal to advertise something as measuring a unit it literally has no chance of measuring. People say to place a 10g weight and then weigh the amount that is too light, but that doesn't work as far as I see for things still below 5mg, so if this thing can't detect a difference of 5mg from 0 to 5 or from 1gram to 1.005... why is it called a scale accurate to .001, sure it displays that, but thats pretty much a guess I can now see... its sad that basically to get a better scale, and not by much you need to spend 200$, and even then you won't be able to measure 1mg, just do better than this piece of junk, which I own and love, but I am annoyed at its misrepresentation of the facts, I guess fraudulent advertisement is now considered marketing huh, how the other guy can in good concience tell you this thing weight very well, i dunno, I mean its the best 20$ scale you can get, but no where near good enough for anything other than .01g measurements really, since scales need to have a 10x accuracy factor if they are worth their salt in order to round up or down to what it shows on the screen. In other words it needs to be more accurate than it displays, nearly alll .1scales are at least accurate to .05, unless their chinese garbage. But somehow this precision scale goes in the opposite direction, and alleges to display values I have no idea how it determines when it literally doesn't have the accuracy to... must be some hella funky coding for a scale that in its own manual states an error rate of plus o minus 5mg but still allege to tell you the exact mg as if that figure have a better than 1 in 10 chance of being right. Sorry the scale isn't bad for the money, I just wish they made one that actually did this, and was affordable to the public.

**Q: Has anyone used this for weighing powder for reloading ammunition? Would you recommend it?**
A: As long as you use check weights or calibrating weights (same thing just different terminology) to calibrate the scale you don’t have to worry about a thing since this one is the most accurate ones I could find other than the gempro 250 which is a $200 scale but I’d still use this one for reloading as long as I have check weights which I’ll always have.

**Q: Can it weigh in milligram precision in very small incrimental measures w/o auto-taring? A problem w/ many scales is to auto-tare tiny weight changes.**
A: Amanda:
I suggest that at 1 mg. precision, the surface the scale sits on, and the degree of level are very important.   The heavier, denser, and more solid the base is, the better the accuracy.   Vibrations also are very important.   Setting the scale on a kitchen counter top (not heavy, dense, and stable) with a refrigerator running anywhere close (say, within 10 or 20 feet) will throw off the accuracy -- probably by a few milligrams, easily.   Something heavy enough to provide a very stable base will be quite difficult to level.  While I'm not sure exactly the level of precision required, it would not surprise me if it needs to be 1 mm/meter, which would be difficult to achieve without a precision leveling device.
I can't tell you that the scale is as precise as advertised, but I do think it would be difficult to find a base in the average home that would allow you to make such a precise measurement.
All that said, I haven't shopped for a scale base that might be made for the purpose - though buying one that would be heavy enough would make it significantly more expensive than the amount you paid for the scale.

**Q: Can I weight diamonds, ruby and gold?**
A: You can anything that has more than or equal to .001 which is a miligram, very small measurement but as long as you have calibrated it right and not damaged the plate and use a level surface, you will have very accurate weight. Always remember conversion, 1mg is .001 and 100mg is .100 on this type and a solid gram is always 1000mg no matter what, different things have different densities so just because one looks more than another or less dont think its broke, unless of course the same material is weighing different . Hope this helped.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Powerful Precision Weighing Scale When Accuracy is Critical
*by H***R on July 24, 2015*

This is a fabulous High Precision Digital Weight Scale. I am most pleased I can push a button, weigh my measuring unit, then hit the button on the left, which subtracts the weight of the weighing tray so that the screen reads 0.000 g and then, since I need to have precisely 0.015 grams of a powder, easily get this precise amount. Then, with a large flip open cover, I can leave the weighing tray on the unit, my weighed power in the weighing tray, put down the cover to protect the powder, and have this meager dosage ready to take with my 120 mg. dosage of Armour Thyroid medication for my thyroid at 4:00 a.m. I don't even have to find my bifocal glasses to see anything! Doing this, this way, saves me over $50 monthly. , I couldn't have asked for a better product to assist me. I did a lot of research to find the proper scale, and this one easily meets all my powder needs for any of my multiplicity of supplements where the dosage is 1/8th of a teaspoon or less up to 20 grams. Currently I use other teaspoons which I level off with a knife. And, once I figure out how to use a drop, a smidgen, a pinch, a dash or a tad, I will be using those measuring tools with this unit as well. Additionally, I could use this unit because it also weighs oz, ct , ozt, dwt, gn, and utilized high precision sensors to ensure the advanced accuracy of 0.001 grams and capacity of 20 grams. The set comes with a set of tweezers, weighing tray, with a dipping area if you are working with fluids, and two 10 kg calibration weights. The unit also features a flip open cover to protect the scale's platform besides a back lit screen for easy visibility. In fact, since the summer of 2014 I have been having hypothyroid issues, where my dosage of Armour Thyroid has had dramatic swings, the loss of 40 lbs. over 3 months, the weight gain of 40 lbs over 2 months, and intense chronic fatigue, etc. Then, when I learned (no benefit of my MD or Pharmacy) to separate iron and magnesium by 4 hours before as well as after my thyroid pill consumption, my thyroid medication settled down to more normal numbers. But, my thyroid is still in a state of flux. I also commenced dicing a raw beet a day to assist my thyroid as well as eating 2 Brazil Nuts daily for my selenium level. This caused my thyroid medication to be reduced to 135 mg. daily from 150 mg and may again decline as my system gets regulated with beets, Brazil Nuts, and no magnesium or iron within 4 hours either side of my thyroid medication. Yet, this dosage of 135 mg. is not a normal one and becomes 2 prescriptions, and thus costs me for 2 prescriptions. Got to love the drug companies who've really figured out how to .... I refused to purchase the 0.015 mg dosage (the size of a tiny nail head). But, I've a goodly supply of 300 mg thyroid medications, which I was slicing into 1/2 or 150 mg which would cost me for 1 prescription and last for 2 months, thus saving me $50. My dosage used to be 90 mg. This kept my medical cost reasonable. So, I ground up the excess supply into powder. Each evening, I use my Heathrow Scientific HD 15909 Spatula with Flat End and Spoon End, 9" Overall Length, to select a wee amount of this powder, and put it in a measuring cup on this scale. It is so easy to get precisely 0.015 grams. If I need tweezers to select a smaller amount of powder, I do that as well. One of the greatest features of this Smart Weigh is the fact you can easily weigh the tare (weighing tray), and once you have that, that tare weight unit is known by the system. Then, push the button on the left, your scale will read 0.000. This makes it so easy for me to read precisely 0.015 grams. I truly hope this information is of help to you. And if any of you have thyroid issues, it doesn't matter which thyroid medication you use, the thyroid medication will not work correctly unless you separate by 4 hours your taking of magnesium or iron, and iron is in everything except for milk products and a few candies. Even yogurt which has fruit on top has iron in it and will interfere with your medication. This period is 8 hours and not a millisecond less! I'm so glad I made this purchase and it has a place of honor on my kitchen counter.

### ⭐⭐⭐⭐⭐ Perfect for accurately portioning medications for my cat! Very accurate for milligram amounts.
*by C***1 on May 23, 2025*

I got this tiny scale to accurately split pills for my cat. I found that my pill splitter was extremely inaccurate, and when the dose increased to 3/4 tablet, a pill splitter would not work. I can now accurately cut a pill into several pieces and get to the correct dose by adding small pieces to the little measuring pan to get to the 67mg dose I need. Very quick and easy. It comes with two calibration weights - one varied a tiny bit from 10g, but one was exactly 10g and works for periodically checking the accuracy. I have been using the scale daily for 3 months and it continues to be very accurate. I could not manage the dosing without it. The little pan is especially helpful. Keep in mind that the total capacity is only 20 grams, which is less than an ounce. It is definitely not a kitchen scale.

### ⭐⭐⭐⭐⭐ Good choice at great price
*by R***R on December 9, 2025*

A fine tool for measuring things that matter most, like jewels ans medicines. Reasonable price, and a sturdy little scale

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-23*