Vilya           : Gil-Galad -> Elrond    a.k.a. "Ring of Air",   a.k.a. "the Blue Ring"       a ring of gold with a great blue stone [sapphire], mightiest of the Three
Nenya           : Galadriel              a.k.a. "Ring of Water", a.k.a. "the White Ring"      the Ring of Adamant, the ring wrought of mithril, that bore a single white stone [diamond] flickering like a frosty star
Narya the Great : Cirdan -> Gandalf      a.k.a. "Ring of Fire",  a.k.a. "the Red Ring"        the stone upon it was red as fire.

        For Círdan saw further and deeper than any other in Middle-earth,
        and he welcomed Mithrandir at the Grey Havens, knowing whence he came
        and whither he would return.

        "Take this ring, Master," he said, "for your labours will be heavy;
        but it will support you in the weariness that you have taken upon yourself.
        For this is the Ring of Fire, and with it you may rekindle hearts in
        a world that grows chill. But as for me, my heart is with the Sea,
        and I will dwell by the grey shores until the last ship sails.
        I will await you."