Tiara

Tiaras are part of any Sailor Senshi's fuku, with the exception of Eternal Sailor Moon and Sailor Cosmos.

Sailor Moon's tiara served as her first weapon and performed two main attacks with it; Moon Tiara Boomerang and Moon Twilight Flash. She received upgrades to her tiara during the Dark Kingdom arc of the manga, but in every other manga arc and Pretty Soldier Sailor Stellar it stayed the same.

Sailor Moon's first tiara was given to her when she first transformed into her regular Sailor form as Sailor Moon.When looking at the tiara from a distance it appears to have a rather simple smooth golden design with a circular red gem at it's centre. On closer inspection though one can see that it in fact has subtle details engraved in its surface and the gem itself is encased in a golden frame.

When removed from Sailor Moon's forehead and activated for her Moon Tiara Boomerang, the tiara morphs into a flat circular shape with the gem placed on top.