Introduction
A-Source prides itself in creating superior and reliable products that are reasonably priced, yet at the same time, provide the highest quality of gemological testing, measuring and cleaning.
A-Source Diamond Tester (ASDT) and A-Source Diamond/Moissanite Tester (AS2-1T)'s highly sensitive and heavy-duty tip allows for a fast, simple and accurate reading. Results displayed by our testers are also instantaneous and its auto power shut down system allows for low battery consumption
For measurement, A-Source Electronic Gemstone Gauge (ASEGG) provides the user with the confidence of precision measurement, with easy to read digital readout.
Featuring the world's first preset function to cater for cleaning of different gems jewelry, A-Source Ultrasonic Cleaner (ASUC) promises to make the cleaning procedure more efficiency and promote better cleaning performance contrary to the usual ultrasonic cleaners.
A-Source Diamond Tester

Gems are pricey, but the ability to distinguish real gems from fakes? Priceless.
Erase your
suspicions before making any purchases with A-Source Diamond Tester (ASDT).
A-Source Diamond & Moissanite Tester

If you're not just interested in testing diamonds, and want your money to go further,
then A-Source Diamond & Moissanite Tester (AS2-1T) is the cost-effective solution for you.
A-Source Electronic Gemstone Gauge

The A-Source Electronic Gemstone Gauge (ASEGG), which can measure the Caratage of
Gemstone and Diamonds
either mounted or loose stone.It is produced with delicate precision
and with quality materials.
A-Source Ultrasonic Cleaner
Based on the gems jewelry, users can select the appropriate preset modes
available on A-Source Ultrasonic Cleaner to maximize the cleaning performance.