16.4 Properties of Diamond
16.4.1 Relevant descriptions of the gemological properties and their practical exploitation
16.4.2 Dispersion and Fire
16.4.3 Reflectivity and Lustre

16.4.4 Brilliance
16.4.5 Directional Optical Properties Polarisation Refraction and the measurement of RI
16.4.6 Non-optical properties Durability SG Electrical properties Thermal properties Wettability
16.4.7 Non-optical directional properties Grain Cleavage Differential hardness Crystal form in relation to the crystal structure of the diamond Their significance in identification and manufacture.