No reserve price - 1 pcs Diamond (Natural coloured) - 4.20 ct - Square - Fancy dark Greenish Grey - SI2 - International Gemological Institute (IGI)

Natural colored diamonds with unusual colors like greenish grey are among the rarest and most sought-after gemstones. This particular diamond weighs 4.20 carats and is categorized as a square shape, likely a princess or similar cut which maximizes brilliance and gives a modern, sharp outline. The fancy dark greenish grey coloration is unconventional and can be attributed to trace elements or structural quirks during the diamond's formation. Its clarity grade, SI2, indicates some inclusions visible under magnification but generally eye-clean, especially in larger stones where inclusions might be overshadowed by the color tone. Graded by the International Gemological Institute (IGI), this certification provides trusted evaluation of the diamond's features. Such substantial carat size combined with distinctive coloring makes this diamond particularly interesting for collectors and designers seeking standout pieces with character.