Since the beginning of time, people have appreciated gemstones for their beauty and uniqueness. The necessity to precisely analyse and identify gemstones has grown crucial due to the rising demand for them. To assist gemologists, jewelers, and collectors in authenticating and identifying different kinds of gemstones, Presidium Instruments, a top supplier of gemological tools, offers a variety of gemstone testing devices. We will examine the various Presidium gemstone testing machines, their features, and how they might benefit you in the field of gemology in this blog post.
Tester for Presidium Gems (PGT)
The Presidium Gem Tester (PGT) is a reliable and transportable tool for identifying the most common gemstones. In order to distinguish between different gemstones depending on how well they carry heat, thermal conductivity is used. The thermoelectric probe tip on the PGT is retractable, ensuring constant pressure between the probe and the gemstone and precise readings.
Diamonds, moissanites, sapphires, rubies, and other well-known gemstones can all be tested with the PGT. It’s crucial to remember that this tool cannot tell the difference between genuine and imitation gemstones or identify gemstone treatments.
Tester for Presidium Diamond Mate (PDMT)
To verify the authenticity of diamonds, the Presidium Diamond Mate Tester (PDMT) was created. This portable instrument separates diamonds from moissanites and other imitations using electrical conductivity. The PDMT’s ergonomic design guarantees simple and precise testing, and the findings are clearly shown on an LED display.
The PDMT is a fantastic tool for identifying diamond imitators, but it cannot distinguish between naturally occurring diamonds and those manufactured in a lab or identify diamond treatments.
Synthetic Diamond Screener for Presidium (SDS)
A sophisticated tool called the Presidium Synthetic Diamond Screener (SDS) is used to distinguish between real diamonds and synthetic ones, especially those produced by the High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD) processes. The SDS assesses a diamond’s UV absorption, which varies between synthetic and real diamonds.
Professionals who need to differentiate between lab-grown and natural diamonds can benefit from the SDS. It is unable to distinguish between different kinds of gemstones or detect diamond treatments.
Multi-Presidium Tester (PMT)
The PGT and PDMT’s features are combined into one, flexible device called the Presidium Multi Tester (PMT). In order to distinguish between diamonds, moissanites, and different coloured gemstones, it uses both thermal and electrical conductivity. The PMT has a dual-probe design that makes it simple and quick for users to switch between tests.
The PMT is a useful tool for evaluating a variety of gemstones, but it is unable to distinguish between natural and artificial gemstones or spot treatments.
Refractive Index Meter for Presidium (PRIM)
An enhanced tool for determining the refractive index of gemstones is the Presidium Refractive Index Meter (PRIM). Based on their optical characteristics, this non-destructive method aids in the identification of gemstones. Quick and precise readings are provided by the PRIM, which has an LED light source and a digital touchscreen display.
The PRIM can test a wide range of gemstones, but it’s crucial to remember that it can neither distinguish between natural and artificial gemstones nor look for treatments.