Historical Diamonds:
* The Koh-i-Noor: A 105.6-carat diamond currently in the British Crown Jewels. Its value is immeasurable due to its historical significance.
* The Cullinan Diamond: The largest rough diamond ever discovered (3,106.75 carats). It was cut into several stones, with the largest, Cullinan I (530.2 carats), also known as the "Star of Africa," being part of the British Crown Jewels.
* The Hope Diamond: A 45.52-carat blue diamond, notorious for its purported curse. It currently resides at the Smithsonian Institution and is considered priceless.
* The Golden Jubilee Diamond: A 545.67-carat yellow diamond owned by the King of Thailand. Its value is estimated to be around $12 million.
Recent Notable Diamonds:
* The Pink Star: A 59.60-carat vivid pink diamond, it sold for a record-breaking $83.2 million at a Sotheby's auction in 2017.
* The Oppenheimer Blue: A 14.62-carat fancy vivid blue diamond, it sold for $57.5 million at a Christie's auction in 2016.
* The De Beers Millennium Jewel 4: A 203.04-carat diamond, it was once the largest flawless diamond in the world and sold for around $10 million in 2000.
Factors Affecting Diamond Value:
* Carat Weight: Larger diamonds are generally more valuable.
* Color: Colorless diamonds are most desirable, but fancy colored diamonds (pink, blue, yellow) can also command high prices.
* Clarity: Diamonds with fewer inclusions (internal flaws) and blemishes are more valuable.
* Cut: The way a diamond is cut influences its brilliance and sparkle.
* Rarity: Extremely rare stones, such as those with unique colors or inclusions, can be exceptionally valuable.
Important Note: The value of a diamond can fluctuate based on market conditions, global demand, and other factors. This list is not exhaustive and there are many other diamonds with significant historical or monetary value.