New CIBJO Website Provides Clear Diamond Definitions March 17, 21 by John Jeffay (IDEX Online) - A new website launched by CIBJO provides easy-to-understand definitions of natural a nd lab-grown diamonds to avoid confusion for anyone who buys, sells o r handles them. The site at www.whatisadiamond.org defines a diamond as a mineral consisting essentially of carbon that crystallises in the isometric (cubic) crystal system." It defines a synthetic diamond o r laboratory-grown diamond as an "artificial product having essentially the same chemical composition, physical properties, a nd structure as that of a diamond, whichever method of growing is used."