When a contestant is in possession of the necklace, it is brought back to camp and typically placed on the shelter. While other castaways can "try on" the necklace, ownership lies solely with the winner and cannot be stolen by another, unless the winner decides to give up the necklace.
From Survivor: Borneo to Survivor: Africa, the necklace was non-transferable, leaving allies vulnerable. Starting from Survivor: Marquesas, the necklace became a transferable item, permitting a castaway to hand it to another. This has proven to be a dangerous (and sometimes risky) move. In recent seasons, Jeff Probst has stopped asking the castaways if they want to give up the Immunity Necklace, but castaways can still give it up on their own terms if they wish to.
Typically, the Necklace will fit with the motif of the season, with some tribal design or small tiki attached. Other designs include feathers, tiki heads, skulls, and even teeth. A winning contestant will wear the necklace at Tribal Council around their neck to indicate their exemption from being voted against.
One-time only Necklaces
During Survivor: Nicaragua, both tribes competed for individual immunity. In previous seasons, two necklaces would both be similar in appearance; however, La Flor and Espada had their very own unique designs and tribal colors, with either a Fleur de Lis or a Sword.
One-time only Immunity Idol
During Survivor: Micronesia, as a part of a first challenge, a special idol is placed on the front of the rafts of both the Airai and Malakal tribes. The rule is almost the same as the necklace, only the possession right lasts until their tribe's first Tribal Council. The Immunity Idol was found by Yau-Man Chan and Kathy Sleckman respectively (technically, Jon Dalton found the idol first; however, he mistook the opposing tribe's idol for his, and Yau-Man reached theirs first). The two idols were both removed from the game by Day 6, as both tribes went to Tribal Council once each in the first six days.
In Survivor: Gabon, there were two individual Immunity Idols, one for each tribe. The Idols was placed at the top of the hill. The first person to each the idol gets it for their tribe. Marcus Lehman and GC Brown got to the Immunity Idols for their respective tribes. The idols were both removed from the game by Day 9.
- Survivor: Borneo: A small tiki with a colorful face with a necklace of shells.
- Survivor: The Australian Outback: A necklace of beads and artifacts with small bones.
- Survivor: Africa: A colorful cloth necklace.
- Survivor: Marquesas: A necklace with shells and a small painted tiki.
- Survivor: Thailand: A golden necklace with jewels and points.
- Survivor: The Amazon: A large feather necklace.
- Survivor: Pearl Islands: A large sword and its scabbard.
- Survivor: All-Stars: A necklace of thread and coins.
- Survivor: Vanuatu: A necklace adorned with shells and four boar tusks.
- Survivor: Palau: A necklace prominently featuring a shark's jaw laced with shark teeth and beads.
- Survivor: Guatemala: A necklace of turquoise beads and ancient Mayan faces.
- Survivor: Panama: A large necklace made of cloth, beads, artifacts and a carved face.
- Survivor: Cook Islands: A necklace of gold spikes with a design in the middle.
- Survivor: Fiji: A necklace of bones.
- Survivor: China: A metallic necklace of symbols and thread.
- Survivor: Micronesia: A necklace of many shells and tiki faces.
- Survivor: Gabon: A necklace of many Gabonese faces and many artifacts.
- Survivor: Tocantins: A colorful feather necklace with symbols and faces at the top.
- Survivor: Samoa: A necklace of artifacts and a hook-shaped object.
- Survivor: Heroes vs. Villains: A necklace of tan, brown and green tiki faces.
- Survivor: Nicaragua: A golden necklace with artifacts and a cross with a red gem in the center.
- Survivor: Redemption Island: A necklace of a set of golden faces with designs and jade stones.
- Survivor: South Pacific: A necklace of shark teeth with a large central tiki.
- Survivor: One World: A necklace of wood, artifacts and a small painted skull.
- Survivor: Philippines: A metallic necklace of beads and a red gem.
- Survivor: Caramoan: A necklace of teeth and a small skull.
- Survivor: Blood vs. Water: A metallic necklace of carved stone and red threads.
- Survivor: Cagayan: A necklace of golden carvings resembling the rangda.
- Survivor: San Juan del Sur: A necklace of beads, artifacts and an ancient face.
- Survivor: Worlds Apart: A necklace of shells, green stones and wood surrounding a compass.
- Survivor: Cambodia: A large red and gold necklace with golden designs, attachments and artifacts.
- Survivor: Kaôh Rōng: A colorful beaded necklace with a set of faces.
- Survivor: Millennials vs. Gen X: A necklace of wood, bones and shells around a large tiki face.
- Survivor: Game Changers: A necklace made of rope and nautical objects.
- Survivor: Heroes vs. Healers vs. Hustlers: A colorful metal necklace with several medallions around it.
- Survivor: Ghost Island: A painted shell necklace with driftwood carvings.
- Survivor: David vs. Goliath: A necklace of painted brown shells, with a large nautilus shell in the center.
- Survivor: Edge of Extinction: A necklace of white medallions, shells, and red tassels.
- Survivor: Island of the Idols: A necklace of teeth, shells, and two moai faces.
- Survivor: Winners at War: A necklace with skull beads threaded in a bib, a skull and crossbones medallion in the center of the bib and a pair of faux Fire Tokens to the left and right of the medallion.
- Australian Survivor (2002): A necklace of shark teeth.
- Celebrity Survivor Australia: A necklace of beads and horns.
- Australian Survivor (2016): A necklace of bones and a hei-matau.
- Australian Survivor (2017): A necklace with green, ancient stone markings.
- Australian Survivor: Champions v Contenders (2018): A necklace with wooden flowers threaded in a wooden bib.
- Australian Survivor: Champions v Contenders (2019): A necklace of red and blue cloth and string with a skull in the center.
- Australian Survivor: All Stars: A necklace of wood, bones and red gemstones.
- Australian Survivor: Brains v Brawn: A necklace adorned with bird skulls, colorful strings, beads and aboriginal amulets.
- Survivor New Zealand: Nicaragua: A necklace of colorful beads.
- Survivor New Zealand: Thailand: A round, golden Thai necklace.
- Survivor South Africa: Panama: A small necklace of teeth, and a wooden medallion carved with the Burba insignia.
- Survivor South Africa: Malaysia: A headhunter necklace adorned with string and bones, and a small skull on the front.
- Survivor South Africa: Santa Carolina: A necklace of small shells on strings, and the Kululama insignia on a white stone in the center.
- Survivor South Africa: Maldives: A metallic Maldivian necklace with small shells on each piece.
- Survivor South Africa: Champions: A metallic necklace of various symbols and objects from countries near the South China Sea.
- Survivor South Africa: Philippines: A metallic necklace with two dragons and a blue medallion.
- Survivor South Africa: Island of Secrets: A metallic necklace with the appearance of an octopus.
- Survivor South Africa: Immunity Island: A necklace of blue pieces and various beads strung together, with the Osindile logo on the front.
- The object that symbolized individual immunity on Survivor: Pearl Islands was the only one to not actually be a necklace, instead being a cutlass in a scabbard.
- The Immunity Necklace from Survivor: Micronesia was repurposed as a Hidden Immunity Idol in Survivor: Ghost Island as a reminder to Wendell Holland (the finder) about its history with Erik Reichenbach giving it away to Natalie Bolton and then being voted out.
- First contestant to win individual immunity: Greg Buis (Borneo).
- First woman to win individual immunity: Kelly Wiglesworth (Borneo).
- First contestant to win individual immunity multiple times: Kelly Wiglesworth (Borneo).
- First contestant to win individual immunity multiple times non-consecutively: Lex van den Berghe (Africa).
- First contestant to win immunity in more than one season: Kathy Vavrick-O'Brien (Marquesas and All-Stars).
- First man to win immunity in more than one season: Tom Buchanan (Africa and All-Stars).
- First contestant to win immunity for the first time as a returnee: Rob Mariano (All-Stars, did not win immunity on Marquesas).
- First contestant to win individual immunity in the tribal phase of the game: John Kenney (Vanuatu).
- First woman to win individual immunity in the tribal phase of the game: Kathy Sleckman (Micronesia)
- The first woman to possess individual immunity in the tribal phase of the game was Ami Cusack (Vanuatu), however, she was given immunity by John Kenney as part of his reward, and did not win it herself.
- Candice Woodcock (Heroes vs. Villains) was the first woman to win individual immunity pre-merge in the form of the Immunity Necklace, as Kathy's immunity was in the form of a one-time Immunity Idol.
- First contestant to give away immunity: Jenna Morasca (The Amazon).
- First man to give away immunity: Burton Roberts (Pearl Islands). Due to the Outcasts twist, he still had individual immunity.
- First contestant to give away immunity, and be voted out: Erik Reichenbach (Micronesia). He was also the first man to give away individual immunity without having another form of immunity.
- First contestant to give away Final Immunity: Chris Underwood (Edge of Extinction).
- First contestant to win immunity twice in one day: Sophie Clarke (South Pacific).
- Most immunity wins in a single season: Colby Donaldson (The Australian Outback), Tom Westman (Palau), Terry Deitz (Panama), Ozzy Lusth (Cook Islands), Mike Holloway (Worlds Apart), and Brad Culpepper (Game Changers) - 5 wins.
- Most individual immunity wins across multiple seasons: Rob Mariano - 9 (4 wins in All-Stars, 1 win in Heroes vs. Villains, 4 wins in Redemption Island).
- Most individual immunity wins by a woman across multiple seasons: Kim Spradlin-Wolfe - 5 (4 wins in One World, 1 win in Winners at War).
- Oldest contestant to win individual immunity: Rudy Boesch (Borneo).
- Youngest contestant to win individual immunity: Will Wahl (Millennials vs. Gen X).