Gem of Amara

The Gem of Amarra is a fictional gem in the Buffyverse. It is described as the equivalent to the Holy Grail for vampires. This artifact would grant the vampire wearer added strength and complete invulnerability to all their usual weaknesses. For instance, if the vampire was staked (which would traditionally 'kill' the vampire), the wound would close and they would not 'dust' (perish). Also, when the gem is worn, the vampire has the ability to travel around outside during daytime, without the sun's rays harming them. Therefore, the gem is considered by many vampires to be a very desirable item.

The Gem of Amarra was sought out by Spike in season 4 of Buffy the Vampire Slayer. Harmony, Spike's girlfriend at the time, finds a ring with the gem set into it and puts it on. Spike subsequently gets angry and stakes her, but she is unharmed. This leads to Spike taking the ring and facing off with Buffy. During their fight, Buffy takes the ring from Spike. Buffy finally sends the ring to Angel via Oz. Spike follows Oz to LA where he attempts to regain custody of the ring. Angel triumphs and uses the ring temporarily, but finally decides it is too dangerous and destroys it.