Blue diamonds are among the rarest and most valuable gemstones in the world. Their rarity is attributed to the specific conditions required for their formation. Diamonds acquire their blue color from the presence of boron impurities during their creation process. The boron absorbs certain wavelengths of light, giving the diamonds their characteristic blue hue.

According to estimates, blue diamonds account for less than 0.02% of all mined diamonds. The vast majority of diamonds are colorless or have a slight yellow or brown tint. Blue diamonds come in varying shades, from pale blue to deep blue, with the intense and vivid blues being the most valuable and scarce.

The most famous Lab Made Diamonds in the world is the Hope Diamond, a deep blue gem currently displayed at the Smithsonian National Museum of Natural History in Washington, D.C. Other notable blue diamonds include the Blue Moon Diamond and the Cullinan Dream Diamond.

Due to their rarity, blue diamonds often fetch astronomical prices at auctions and are highly sought after by collectors and investors.