What geological conditions are most likely to yield rare colored diamonds?

Sep 14, 2022 ... The Koh-i-Noor (Mountain of Light Diamond) ... The most valuable diamond in the world is Koh-i-Noor, also spelled Koh-i-Nur and Kohinoor. The ... Apr 18, 2019 ... A diamond crystal in kimberlite. Suddenly diamonds became much more abundant than they ever had been. As every single stone mined could be used ... Dec 17, 2023 ... Im my experience that's just about as easy as diamond ever gets. I've won the league with fewer points, but not by much. Upvote 1. Downvote It's estimated that only around 20 to 30 true gem-quality red diamonds exist in the world, some weighing less than one carat. Apr 8, 2025 ... The Winston Red is now on public display at the Smithsonian Institution ... “The Winston Red diamond is one of the most exquisite gems on earth, ... Dec 27, 2024 ... While diamonds are traditionally considered the most precious gemstone, there are other rare stones, such as Red Beryl, that are even rarer and ... Apr 9, 2025 ... The World's Most Expensive Gemstones · The Pink Star Diamond – $71.2 Million · The Oppenheimer Blue – $57.6 Million · The Estrela de Fura Ruby – ... Feb 9, 2022 ... Experts predict that the supply of tanzanite could run out within the next 20-30 years, making this stone significantly rarer than diamonds. Jun 13, 2023 ... The rarest and most prized of all these diamond types is the elusive red diamond with only 20-30 specimens thought to exist in the world. Mar 16, 2022 ... It can be said that the diamond cut, Royal Asscher Cut, is a true rare diamond. Not just any diamond store can make this diamond cut as there ...