While the 4 Cs are famously used for diamonds, they apply differently to colored stones where is the most critical factor.
: Evaluated by its hue (the basic color), tone (lightness/darkness), and saturation (intensity). GEMSTONES
Gemstones are mineral crystals or organic materials prized for their beauty, durability, and rarity. Whether you are a collector, buyer, or hobbyist, understanding the different varieties and value factors is essential. Core Classifications Historically, gems were split into two main groups: While the 4 Cs are famously used for
: These include Diamond , Ruby , Sapphire , and Emerald . GEMSTONES
Colour. Colour is the main feature of a gemstone, which exudes beauty and rarity. Gemstones need to possess three characteristics: