No you cannot gold your jewellery, but there is a golden vendor at weekends in your respective alliance home base. e.g for me, it is North High Rock Gate near the stables which supplies golden jewellery every weekend for a paltry 500K AP or gold, but it is early and cannot remember how much gold they cost.
Or buy them in guild stores.
Once I was a lamb, playing in a green field. Then the wolves came. Now I am an eagle and I fly in a different universe.
Been taking heads since TeS 3 Morrowind..
Been enjoying PvP tears since 2014
LvL 50 - Dragon Knight EP [PC-EU] = Illuvutar = Ex The Wabbajack = (Stam DK)
LvL 50 - Night Blade DC [PC-EU] = Legendary Blades = Evil Ninja/Dueller = (StamBlade)
LvL 50 - Sorcerer DC [PC-EU] = Daemon Lord = (Mag Sorc)
LvL 50 - Dragon Knight DC [PC-EU] = Khal-Bladez = (Mag DK)
LvL 50 - Dragon Knight DC [PC-EU] = Tenakha Khan = (Stam DK)
LvL 50 - Templar DC [PC-EU]] = Blades The Disgruntled = (Stamplar)
LvL 50 - Night Blade DC [PC-EU] = Ghost Blades = (Assassin)
LvL 50 - Night Blade DC [PC-EU] = Malekith The Shadow = (Mag NB)
LvL 50 - Warden DC [PC-EU] = Crimson Blades = (Stamden)
Guild Master of The Bringers Of The Storm.
Harrods
The golden vendor will carry 2 gold jewelry items each week for 500k ap or 250k gold each. It's a random selection, and can include drop sets that are not pvp. I'm not sure every type of drop set comes up...I'm not sure trial sets are included. Undaunted dungeon sets are...warlock came up last week. Viper has come up, red mountain. Vicious death. Those are ones I remember because I bought them.