We do not have a download file for the latest version (5.00.45), but you can try downloading it from the developer's site
Download version 4.1 from Software Informer
Scanned by 6 antivirus programs on Oct 24, 2016.
The file is clean, see the report.
Version: 4.1 (x86)
Date update: Jan 23, 2016
File name: diamond-4.1.2-setup.exe
Size: 669 MB