The world of gemstones boasts some incredibly valuable specimens, often fetching exorbitant prices due to their rarity, beauty, and demand. What are the most expensive gemstones? Some of the most expensive gemstones.

1. Pink Star Diamond: This stunning pink diamond holds the record for the most expensive gemstone ever sold at auction, fetching over $71 million.

2. Blue Diamond: Blue diamonds, particularly those with intense color saturation and high clarity, command incredibly high prices. For example, the Oppenheimer Blue Diamond gemstone sold for over $50 million.

3. Musgravite: This rare gemstone is valued at over $35,000 per carat, making it one of the most expensive gemstones in the world due to its extreme rarity.

4. Jadeite: Fine quality jadeite, especially Imperial Jade gemstones, can command prices higher than diamonds. Exceptional pieces have sold for millions of dollars.

5. Red Beryl: Also known as Bixbite or Red Emerald, this gemstone is exceptionally rare and can sell for several thousand dollars per carat.

6. Grandidierite: With its vivid blue-green color, Grandidierite is highly prized by collectors and can command prices upwards of $20,000 per carat.

7. Alexandrite: This color-changing gemstone is highly sought after by collectors for its rarity and unique optical properties. Fine quality Alexandrite gemstone can fetch prices in the thousands per carat.

   
   

   8. Padparadscha Sapphire: Padparadscha sapphires are a rare variety of corundum known for their delicate pink-orange hue. High-quality padparadscha sapphire gemstone specimens can command prices similar to or even surpassing fine blue sapphires.