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..

Rubies are the stones of folklore and mystery. Often fiery red and reflecting an extraordinary depth of color, ruby is said to resemble the heart and is able inspire the passions of love. This stone..

Rubies and sapphires are composed of almost pure aluminum and oxygen and are members of the corundum family. The mineral is often called a ruby when it is red and a sapphire when it is blue. The rub..