Some information from Mark L. McLaughlin (mlm@kodak.com):
She was the fifth and youngest child, and the only daughter of Finarfin, son of Finwe, High King of the Noldor and Earwen, daughter of Olwe; which puts her in the third generation of the Eldar. She was born during the later part of the Noontide of the Blessed Realm, so at the time of The Lord of the Rings she was well over ten thousand years old. She was the tallest of the women of the Eldar, measuring about 6'4"; and was accounted the strongest in will and body, being both an accomplished athlete and the only woman to stand in peerage with the Princes of the Noldor at the time of their Exile.
One story worth relating concerns her hair. It glowed with such a radience that the Eldar said that the blended light of the Two Trees must have been emeshed in its strands. Feanor was said to have been so captivated by its beauty that he begged her three times for a lock of her hair. She refused and they were estranged, but it is said that from this Feanor conceived of the Silmarils. Compare this incident against that in The Lord of the Rings when Gimli asks for and receives a lock of Galadriel's hair. A minor affair, but further proof of the humbling of her pride, which eventually resulted in the lifting of the ban against her returning to Aman.
