Can GemCalc work with different gemstone, such as Sapphire, Quartz, Topaz etc.?
GemCalc can work with any isotropic minerals. You can read about this in chapter 9 of GemCalc “User manual” or find the same description here. I registered with RapNet and have downloaded their RapNet99 application. I tried opening the DBFCONV application, but got a “Cannot load DBC libraries…need full version” error. How can I load their prices into GemCalc? If you tried the small version then please try the full version of DBFCONV. Here you will find the related links how to use Rapaport price list in 3DCalc.