5 Most Expensive Gemstones in the World

3. Pink Diamond 

Average Price Range: $1.1-1.19 million per carat

Pink diamonds, a particularly rare and esteemed category of diamonds, display a spectrum of shades, ranging from subtle orange-pink to deeper purplish-pink. The depth and vibrancy of the color are critical factors in determining their market value, with the more intense and vivid hues typically fetching higher prices. Their scarcity significantly contributes to their premium valuation, as pink diamonds are much rarer than colored diamonds.