Even perhaps more than a tray of loose diamonds, a tray of loose emeralds,rubies and sapphire can always excite a gemologist for hours. A huge benefit of these rare and valuable gemstones is that they..

Gemstones are described by gemologists using technical specifications. Gems have refractive index, dispersion, specific gravity, hardness, cleavage, fracture, and lustre. Some minerals that are too so..

Sapphire is identical in structure to ruby and is a variety of the mineral corundum. Sapphires are seen widely as blue in color with red and pink red corundum stones being classified as rubies. This..

How can you tell the difference between a real diamond and a crystal? A crystal of what, Daniel? Quartz? Colorless Sapphire? Cubic Zirconia or Moissanite? The easiest way to tell the difference is to..