Thanks to http://benevolentbowd.ca/ (note unsecure site)
The Golden vendor is a special vendor that only appears on the weekend to sell rare monster sets usually found in the various group dungeons.
Spell Power Cure Ring – Arcane 250,000g / 500,000AP
Ice Furnace Ring – Healthy 250,000g / 500,000AP
*Seventh Legion’s Ring – Healthy 150,000g / 300,000AP
*Ring of the Wilderqueen – Robust 150,000g / 300,000AP
Slimecraw’s Shoulders – Infused / Impenetrable (Light, Medium, Heavy) 100,000g / 200,000AP
Nerien’eth’s Shoulders – Infused / Impenetrable (Light, Medium, Heavy) 100,000g / 200,000AP