Macro Blue sapphires, brother to the red variety of corundum; ruby, are heralded for their plush colour and were once said to have protected the wearer from envy and attract divine favour. Micro Platey negative crystals stacked one upon another, provides welcome proof of the sapphire's natural origin.

Macro Natural blue sapphires may display a wide variety of shades and tones. Micro A wide diversity of healed fracture patterns may also be observed, as illustrated here with this unusual "fauna" motif.

Macro A unique combination of properties and characteristics permit a diamond to achieve its distinctive brilliance and scintillation. Micro Triangular demarcations, known as Trigons, are frequent tenants on portions of the original "skin", remaining on a faceted diamond.