Morriel: plenty of descriptions of her. Hair pinned up with diamond combs. Fingers jewelled with amethyst and gold. Mantle pins of the same. She'd have an elaborate gown, probably silk or brocade, with embroidery in gold. Nine red bands of rank at the sleeves and (if going out) hood of her over-mantle. Her blouse would be silver or white, with full sleeves and probably jewels or seed pearls. Her girdle would have threadwork, sewn in wardings, and she would carry a purse tied or clipped to her waist, padded, and with pockets for various crystals. Large stones would be carried and brought to her by attendents.
If she was traveling into COMMON company (rare!) outside of a curtained palanquin, she would be veiled in silk gauze, the hem weighted against wind or chance disarrangement with pendent amethysts.
The veil would be pinned back, or trailed down her back, say, in audience with one she considered a near equal (Fellowship, or adept initiate). If she were in judgement, veiled, there are descriptions in Mistwraith and Peril's Gate, when judgment was passed on Elaira and Lirenda.