During the night, I have been rendering diamonds. I am very happy to show you the following image because I finally found the perfect settings to make diamonds look like diamonds. The last two were less impressive in terms of light refraction. Here, it looks like each one of them have a thousand colors.
This took about 9 hours to render with Maxwell 2. I'm interested in making realistic objects/architectures and I'm really convinced that Maxwell is a must-have, at least for jewelry visualization.