The Ceres Transformation Pen- This is the first item Terra receives. Unlike her other items, Celeus is not the keeper of the Pen, Luna is, and she gives the pen to her at the end of the first episode of Sailor Moon Remembered Senshi. Terra uses this pen to transform into Sailor Ceres.
The Ceres Power Key- This is the item Terra receives in her first real battle against Sailor Chaos. The Key allows Terra to better cannel her powers and makes it possible for her to use her Powered Up attack, Ceres Tremble. Later, when she recovers the Jadestone, the Key also allows her to call upon Ceres Cosmic Power.
The Ceres Emerald Jadestone- This is the power crystal of Terra's planet, Ceres. After the destruction of Ceres, it split itself into three parts, each hidden in a soul child of Ceres. Due to the fact she no longer has a planet, it is the main source of power Terra has. She uses it to call upon Ceres Cosmic Power, and later to transform into a Star Powered Sailor Senshi.
The Quadra-Jadestone- This item doesn't actually do anything but hold up Terra's hair. It was Aspen/David Hollins family heirloom and he gave it to Sailor Ceres during the Silver Millennium as a reminder of his love.
The Emerald Soul of Life- This item doesn't do anything either besides hold the bottom of Terra's braid in place. It is however, the heirloom of Terra's father (Lord Hazel Oaklawn), and the last gift he gave to her.
The Ceres Star Wand- A combination of Sailor Ceres original Transformation Pen and the Ceres Emerald Jadestone. Terra uses this to turn into Star Powered Sailor Ceres, and to preform Star Powered Sailor Ceres's attack, Ceres Vegetate. She receives this in the first episode of Sailor Moon Knights of the Cosmos.