These were made by the Elven smiths of Eregion. The Seven and the Nine were made with Sauron's assistance, the Three were made by Celebrimbor himself, and the One was made by Sauron alone, in secret.

> Therefore the Three remained unsullied, for they were forged by Celebrimbor alone, and the hand of Sauron had never touched them; yet they also were subject to the One.