An uncut ruby is a red gemstone used in Crafting and Fletching. An uncut ruby can be crafted into a ruby at level 34 Crafting, yielding 85 Crafting experience.
At level 63 Fletching, players can cut a ruby into 12 ruby bolt tips, yielding 6 Fletching experience.
Prior to the introduction of Grand Exchange the examine text on uncut stones read: "This would be worth more if it was cut." This description no longer matched the actual trading value of gems and thus this was later changed.
Although formally released on 8 May2001, uncut gems were briefly obtainable following the 17 March 2001 cooking update, before the Crafting skill was fully implemented.