Diamond sparkle is the primary quality that makes the gem so beautiful. The Ideal cut diamond is the diamond that sparkles the most.
Diamond Cut: The Most Important C
Scientific gems are having a sparkly moment - Marketplace
Why Does Diamond Have Such A Sparkling Brilliance?
Ulticut Diamond Page - Authica J
Why Do Diamonds Shine - The Science Behind The Sparkling Rock
Diamond 4 C's of diamonds, Types, Grades, & Price Guide
Researchers achieve data storage breakthrough using diamond defects
Treasures of the Earth, Molecular Structures of Diamond and Graphite
4 C's of Diamonds: Carat, Cut, Color & Clarity