Are there different grading standards for lab-grown diamonds?

Apr 9, 2025 ... A rare blue diamond was among the treasures on display at an exhibition of $100 million worth of the world's rarest diamonds in the United ... Apr 8, 2025 ... “The largest red diamond in the world is 5.11 carats, and this is 5.05 carats,” says Redmayne. Red diamonds are so rare, he adds, that legendary ... 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 ... Nov 29, 2024 ... We'll look closer at the top 10 most expensive diamonds in the world, each known for their uniqueness, rich history, and extraordinary value. 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 ... ABU DHABI, United Arab Emirates (AP) — A rare blue diamond was on display Tuesday at an exhibition of $100 million worth of the world's rarest diamonds in ... Mar 19, 2025 ... Red Diamonds: The Rarest Diamond Color in the World · This unique formation process is so exceptional that red diamonds typically range from just ... Jul 1, 2024 ... Our roundup of the world's most expensive diamond rings delves into the different colors, sizes, and price tags of these mesmerizing jewels. While red diamonds are the rarest option, make sure that you don't miss what's most important: you have options! If red isn't your style, you're lucky. You're ... While all diamonds are unique, certain forms of diamonds are especially uncommon. In general, colored diamonds are very sparse, red diamonds being the rarest of ...