On May 13, Geneva will host an auction of a unique blue diamond that stands out not only for its incredible size, but also for its extraordinary clarity. The stone weighs 10.03 carats and has an intense “Fancy Vivid Blue” hue, making it one of the most desirable and rare diamonds in the world. The exceptional blue diamond at auction in Geneva represents an excellent investment opportunity, given the rarity and value of such stones.
A unique blue diamond at auction in Geneva – what makes it stand out?
Blue diamonds are some of the rarest and most desirable gemstones in the world, and their unique color makes them unique among other diamonds. Their unique hue is created by the presence of boron in the crystal structure, which attracts attention with its intensity and depth. A blue diamond at auction in Geneva is a true rarity, as such stones are extremely difficult to find in nature. Only 0.3% of all diamonds in the world have any coloration of blue, and only a small fraction of them qualify as “Fancy Vivid Blue,” the most desirable shade. These stones are formed under extreme conditions, deep in the earth, where they are formed under tremendous pressure and temperature. Due to their rarity and difficulty in mining, blue diamonds appear at auction only occasionally, and each auction where such a diamond is offered becomes an event that attracts the attention of collectors and investors from around the world.
Size, cut, shade – or basic information about the stone
Size. cut. shade. These three elements determine the uniqueness of each diamond. Also in the case of the blue diamond at the Geneva auction, they are the key to its incomparable value. The stone weighs 10.03 carats. For this reason alone it is a rare specimen, but its true magic lies in its cut. The blue diamond, carefully cut into a cushion shape, is not only beautifully balanced, but also perfectly highlights its color. Its “Fancy Vivid Blue” shade is one of the most valuable and desirable on the market, drawing the eye with a depth that only a natural blue diamond can convey.

And what makes this shade so unusual? In its structure is hidden boron, which gives the stone this unique color. Only a small percentage of diamonds in the world are able to meet such high standards. That’s why this stone inspires desire. The blue diamond at the Geneva auction is therefore more than just an investment. It is a piece of earth that has undergone millions of years of formation under extreme conditions to become one of nature’s rarest and most prized treasures. Can you imagine anything as fascinating?
Sotheby’s diamond auction
The event is attracting worldwide attention. The auction will take place on May 13, 2025 in Geneva, at one of the world’s most prestigious auction houses. The starting price has not yet been disclosed. However, given the uniqueness of the stone, its value could reach millions of dollars. Those interested in buying can sign up for the auction through the website Sotheby’s. Details of the bidding procedure and terms of participation are also available there. Such auctions do not happen every day. All because blue diamonds appear on the market only occasionally. So every opportunity to acquire such a stone is unique. A diamond auction at Sotheby’s is therefore an event that will long be remembered by collectors, investors and jewelry lovers.