PGCG unit only comes with 73 basic gemstone data. Use the mini disc included to access data for 133 additional gemstones.
Diamond rings usually have a small hole on the inner part of the ring. In this case, use the jewelry attachment included with your Presidium gauge. This jewelry attachment will fit through the hole and touch the bottom tip of the diamond.
PGCG is currently only configured for Microsoft Windows platforms.
No. Dust will stick on the grease, which will eventually jam the slider.
If your unit cannot be reset to zero, this could be due to dust or small particles deposited on the base anvil. Please clean/wipe the base anvil to ensure that no particles are deposited on it.
If the gauge has been dropped, the Projecting Probe, Slider Anvil & Base Anvil will be deformed.