HDRI map is great for 3D rendering jewelry diamonds/gems on a white background. In the rendering example images, no additional lights were used.
If you need a ready-made scene rendering setup (KeyShot v.7+) with this HDRI environment map, then please check out this product.
The archive contains an environment map of the type sphere in .hdr format.
The sample render scene, render images and CAD files (3D models) are not included in the download file set.
Examples of diamond rendering on this page were implemented using 3ds Max and iRay render software.
By purchasing this product you should have at least basic knowledge about using HDRI environment maps in 3D programs.