This tutorial covers creating and rendering gemstones, specifically diamonds, and dispersion in Blender Cycles using some special techniques and a special free node created by jocafa. The link to download the node is provided below. To create a gemstone, simply use the mesh extras addon and add a brilliant diamond. This tutorial does not cover how to design a ring, simply how to render gemstones and dispersion accurately using the node covered.

Project File Download here: [ Ссылка ]

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Follow jocafa on twitter: @joshfaul

jocafa node download: [ Ссылка ]
HDRI located here: hdrihaven.com

Jump to locations here:
Project Setup 00:36
Correct Project Scale 01:19
Correct Lighting 03:39
Gemstone Insets 04:49
Glass Shader 07:07
Light Path Settings 07:48
Download jocafa Dispersion Node 10:26
Append Material 11:20
Prepping the Material Shader 13:00
Adjusting Settings 14:00
IOR Settings 19:10
Dispersion or Abbe Number 20:17
Ground Material 22:01
Final Renders and Comparisons 23:07

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