C: Radiant belongings or imitations of his epesse, nomenclature-wise.
OCEAN & SWAN: Emblematic of a Gondorian prince and his kin.
(Silver & blue)
LIVERY OF GONDOR: An offal-like person of the South Kingdom, or his raiment?
(Black & silver)
ORI & OIN: Arrived together, and the same but for changed direction and slight disorder. (The secret’s in the headgear).
(Grey & brown)
UNDOMIEL'S GIFT: Precious but kind jewellery, for Frodo.
(White & silver)
RING OF AIR: Circular band of something nitrogen-rich?
(Blue & gold)
PERIL (FOR RUBY & BERYL): Any can be dared for two comedy actresses – they’re priceless gems!
(Red & green)
A: Garb of Pheriannath.
INK IN THE RED BOOK: Graces the pages of a hefty tome.
(Red & black)
ROHAN'S FLAG: Galloper on grass, emblemised?
(Green & white)
SAPPHIRE & EMERALD: Desired for a lunar tiara?
(Blue & green)
Just give me a word meaning 'garb' that begins with A, and I'll let you have that answer.
C refers to someone who made shiny things. And two of the shiny things he made.