What are the different methodologies used for diamond valuation?

Of the various different colors, Fancy Red Diamonds are by far the rarest. They are not often found, and sourced from very few locations around the world. This is the most perfect a cut diamond can be. A diamond this perfect is so rare that most jewelers and gemologists never see one during their career. Strawn ... Sep 28, 2022 ... A rare deep earth diamond was unearthed from the Karowe mine. It was buried 660 kilometers beneath the surface of the Earth. Here, we have put a list of the Top Most Expensive Diamond, an undefined beauty with rich culture and history! 'The Oppenheimer Blue can only be described as one of the rarest gems in the world,' says Curiel. 'It is the gem of gems.' Related departments ... Jan 17, 2018 ... The Koh-I-Noor is an oval-shaped diamond and weighs 105.6 carats. Steeped in mystery and legend, it is believed that the stone has been mined in India in the ... Dec 8, 2023 ... ... diamonds in the world. This historic gem has passed through the ... Aside from their beauty and brilliance, these exceedingly rare 100 ... In this article, we will take a look at the top 5 world's rarest diamonds and explain why they have such a hefty price tags. Jan 28, 2025 ... Red diamonds are among the rarest and most valuable types of diamonds. In fact, fewer than 30 red diamonds are known to exist in the world! It's called the Winston Red Diamond, and what makes it so exceptional is the nature of its redness. Designated as a “fancy red” by the Gemological Institute of ...