The Gold Tiara is an uncommon pet accessory that is obtainable by buying the Royal Butterfly Bundle for 80. It was also available in the Hat Shop for 300 for a while, but was taken out and replaced with the Headset.
The Gold Tiara features a golden tiara with a golden heart and other detailing on the top. This pet accessory goes on the pet's head.
The Gold Tiara has a counterpart called the Platinum Tiara.