Agape Ring - Majula

Life Ring - Starting Gift, In a chest after unpetrafying Rosabeth in Shaded woods. Get from mimc in drangleic castle. 
(Note +1 is base, +3 is now +1)

Chloranthy Ring - Found in Shrine of Amana, +1 can be found in Eleum Loyce and having the ice broken.
(Note +1 is now base, +2 is now +1)

Havel’s Ring - Lost Bastille, hidden room behind Pharros door.
(Note +2 is now +1, was known before as Royal Solder Ring)

Ring of Favor - Get it upon completing Raulmound’s questline in giant Memories, or kill him
(Note Third Dragon Ring is now base)

Ring of Steel Protection - Found in Iron Keep chest
(Note +2 is now base)

Spell Quartz Ring - Found in Shaded Ruin, Sold by Straid +1
(Note +1 is now base, +3 is now +1)

Flame Quartz Ring - Found in Iron Passage behind a prison door, Obtained in after Drake boss.
(Note +1 is now base, +3 is now +1)

Thunder Quartz Ring - Found in Grave of Saints, Get in Brume Tower in a hidden room with broken wall.
(Note +1 is now base, +3 is now +1)

Dark Quartz Ring - Get in the Gutter, Found in Shulva.
(Note +1 is now base, +3 is now +1)

Poisonbite Ring - Get in Doors of Pharros
(Note +1 is now base)

Bloodbite Ring - Get in Forest of Fallen Giants behind a Pharros door.
(Note +1 is now base)

Cursebite Ring - Obtained from Melentia as a reward for buying her stuff (12,000+ souls required), or kill her for it.

Bracing Knuckle Ring - Dropped by Roy in Grave of Saints, found in Shulva.
(Note +2 is now +1)

Ash Knuckle - trade from rat souls 

Dispelling Ring - Rewarded from Navlaan
(Note +1 is now base)

Ring of Resistance - Found in Eleum Loyce
(Note +1 is now base)

Ring of Blades - Found in Lost Bastille near McDuff, found near Sir Alonne’s quarters.
(Note +2 is now +1)

Ring of Knowledge - Found in Brightstone Cove Tseldora after obtaining the Tseldora key.

Ring of Prayer - Found in Shrine of Amana.

Stone Ring - Found after the Undead Purgatory

Red Tearstone Ring - Found in Earthen Peak outside of the hidden wall

Blue Tearstone Ring - Found in Forest of the Fallen Giants

Wolf Ring - Sold by Vengarl
(Note +2 is now base)

Leo Ring - Get from Ornstein

Ring of Soul Protection - Found in Majula pit.

Ring of Life Protection - Found in the Lost Bastille, Iron Keep, Black Gulch, and Brightstone Cove Tseldora.

Lingering Dragoncrest Ring - Dropped by Desert Sorceress, Found in Shulva
(Note +2 is now +1)

Clear Bluestone Ring - Sold from Magerold, Get from Duke in Brightstone Cove Tseldora
(Note +2 is now +1)

Northern Ritual Band - Shaded Woods, Aldia’s Keep
(Note +1 is now base, +2 is now +1)

Southern Ritual Band - Before the big door to Aldia’s Keep, dropped in Drangleic Castle
(Note +2 is now +1)

Covetous Gold Serpent Ring - Found in Harvest Valley behind a Pharros door.
(Note +2 is now base)

Covetous Silver Serpent Ring - Found in Shrine of Amana near the Amana Altar.
(Note +2 is now base)

Ring of the Evil Eye - Found in the Black Gulch gutter
(Note +2 is now base)

Ring of Restoration - Found in a chest after Ornstein in Cathedral of the Blue

Ring of Binding - Found in Things Betwixt

Silvercat Ring - Sold by Sweet Shalquoir

Redeye Ring - Found in Huntsman’s Copse

Gower’s Ring of Protection - Found in Doors of pharros

Name-engraved Ring - Found in Majula

Slumbering Dragoncrest Ring - Found in Forest of Fallen Giants

Hawk Ring - Found in Brume Tower

Old Sun Ring - Found in brume tower

Illusion Rings - Placeholder

Blossom Ring - Found in Undead Crypt

Ring of Thorns - Obtained from Pate, or kill Pate
(Note +2 is now +1)

Delicate String - Sold by Titchy Gren

White Ring - Found in the Gutter

Ring of Whispers - Found in Shaded Woods, near Vengarl 

King’s Ring - Found next to Hollow Vendrick

Lightning Clutch Ring - Dragon Sanctum, Shulva

Sorcery Clutch Ring - Eleum Loyce

Dark Clutch Ring - Sold by Navlaan

Fire Clutch Ring - Brume Tower

Flynn’s Ring - Found in Frigid Outskirts

Ring of the Emedded - Found in Eleum Loyce

Yorgh’s Ring - Found in Sinh’s boss room, shulva

Strength Ring - Found in Iron Keep

Simpleton’s Ring - Found in Brume Tower.

Ring of Humanity - Awarded by Darkdriver Grandahl
(Was previously Ring of the Living)

Ivory Warrior Ring - Found near one of the Loyce Knights in Eleum Loyce.

Dexterity Ring - Found in Brume Tower

Baneful Bird Ring - Found in Brume Tower.