"The most precious gem one can find in Hyrule, its signature sparkle has charmed Hyruleans for generations. As such, it has sold for a very high price since ancient times."
— In-game description

Diamonds are items from The Legend of Zelda: Breath of the Wild. They are rare gemstones which can be obtained rare Ore Deposits, from the side quest "Luminous Stone Gathering", or dropped by Talus mini-bosses and all Silver Bokoblin, Moblin, Lizalfos, Lynel enemies variants. Link can craft equipment with them, in particular, reforging the signature armaments of the four champions(also using similar equipment and 5 pieces of flint in the reconstruction) and the Diamond Circlet(to purchase). They can be sold for 500 Rupees. Although diamonds are the only gemstone not mentioned to harness a special elemental ability, the diamond circlet's effects imply that diamonds possibly harness the same power that guardians use in their weaponry.

See also