It naturally has a parallel crystal formation. Like all tourmaline, this natural gemstone is a form of crystalline boron silicate. Paraiba tourmaline typically costs $5,000 per carat, but very rare precious stones can fetch more than some diamonds. Paraiba tourmaline is one of the rarest gemstones, and it was only discovered in 1989 in Europe. Its vitreous luster means it has a low refractive index, but it still costs around $4,000 per carat.
The natural gem was a unique hexagonal crystal formation and blue fluorescence under UV light. Benitoite was discovered between San Francisco and Los Angeles in the early 1900s and was honored as the official gemstone of California in 1985. The combination of low temperatures and high-pressure forms this rare crystal. Benitoite – $4,000 per caratīenitoite is a rare gemstone formed in regions near subduction zones. They’ve been featured on some of the most expensive shoes of all time.įrom vivid green to icy pink, we’re counting down to the 15 most valuable gemstones, from least expensive to most expensive: 15. These rare gemstones have graced the red carpet. But all of these rare gemstones are likely to stay valuable for a long time. Like so many industries, discoveries of precious stones can shake up what is the most expensive. Some of them are hard to find in a traditional jewelry store.
Not all of them are commonly used in fine jewelry. And while many precious gemstones are lab-grown, all of these are natural gemstones.
But not all precious gemstones are expensive.įeatured by some of the best jewelry brands, the most valuable gemstones are stunning. What is a gemstone? It’s a mineral that’s valued for its beauty and market value. But the list of the most expensive gemstones may surprise you. Others will imagine popular precious gemstones, like rubies or sapphires. Many will imagine a stunning brilliant-cut diamond.
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