"A set of matching precious-stone rings referred to as Circles by collectors of valuable antiques. Fashioned by the original and great Serendi himself, these rings are said to have acrostic significance."
Amethyst Circle[]
A gilded band mounted with a cluster of amethysts.
Location: Stonemarket - Traitorsgate, Chapter 1 (on the ground near an abandoned cart).
Diamond Circle[]
A gilded band mounted with a cluster of diamonds.
Location: Furnace Hall, Vale Street Ironworks, Chapter 2 (in the room in the back, near where you first climb up).
Emerald Circle[]
A gilded band mounted with a cluster of emeralds.
Location: The House of Blossoms - Upper Level, in the attic area, accessed by climbing either the shelf in one of the private rooms, or the piping near one of the staircases.
Lapis Lazuli Circle[]
A gilded band mounted with a cluster of lapis lazuli.
Location: Dayport - Rooftops (after the short cutscene at the beginning of Chapter 4, during which the Keep explodes, turn toward the left and use a Rope Arrow to climb down into the small courtyard area. The ring is under one of the benches).
Ivory Circle[]
A gilded band mounted with a cluster of ivory.
Location: Moira Asylum - Treatment Center, in the safe in the Operations Room (listen to the clanking of the pipes per Document: Knocking in Pipes: 7-3-1).
Sapphire Circle[]
A gilded band mounted with a cluster of sapphires.
Location: Northcrest Manor - First Floor (in the lounge safe, combination 8-8-9, per Annabel's Note)
Amber Circle[]
A gilded band mounted with a cluster of amber.
Location: The Hidden City - The Rotunda (during the boss fight with the Thief-Taker General, pick the General's pockets for the ring. Flash Bombs and Dexterity Focus Upgrade highly recommended).