The Most Valuable and Expensive Gemstones In The World – Some May Surprise You

Red coral

Per carat price: $320
Genuine red coral is becoming hard to find these days so they are considered to be rare. Its value is determined by its color saturation and hue. Red coral is often used in statues and carvings aside from jewelry.

Japanese red coral, also called ox blood, is considered to be the rarest type of red coral. It has heavy demand among the wealthiest Chinese. The demand is so great that they are being overharvested, contributing to its scarcity.