Waterproof Ancient Marine Fossil Choker Necklace – Real Fossils, Built to Last
Own a genuine piece of the ocean! This authentic choker features a real, ancient shark tooth fossil (2–23 million years old), ethically sourced by scuba diving off Florida's coast. Sitting high and snug around the neck, it puts your fossil front and center. It's made to be waterproof, durable and one of a kind.
Each fossil is matched to your cord length: shorter cords come with smaller teeth, and longer cords feature larger ones.
Why choose this necklace?
- 100% waterproof and adventure-ready: wear it surfing, swimming or exploring without worry.
- Ethically handpicked: every fossil is responsibly sourced and handcrafted by SHRKco owner Jeffrey Heim.
- Bold, close fit: the high-neck choker style puts your fossil on full display.
Which length should I get?
- 14": our standard choker. Sits high and snug around the neck.
- 15": a touch looser, still high on the neck.
- 16": sits at the base of the neck.
- 17": the relaxed end of choker length, just above the collarbone.
All choker lengths come with a small tooth, sized to sit neatly at the neck. Choose a black or blue waterproof cord, a gold, black or silver wire wrap, and a Bull or Lemon shark fossil. Want a bigger tooth? Our Classic Bull and Lemon necklaces go up to 24", with medium teeth at 18"–20" and large teeth at 22"–24". Fit varies with neck size. For an exact fit, lay a string or a necklace you own where you like it and measure it.
Shipping & gifting
- FREE US shipping on orders $50+. Otherwise $5.95 for 3–5 business day delivery.
- Tracked worldwide shipping from $18.95, and free on international orders over $100.
- A gift with a story: every fossil is hand-found by our founder on a dive, so no two are exactly alike. Yours will look like the photos but have its own natural shape and color.
FAQ
Is this a real fossil? Yes. It is a genuine fossilized shark tooth, not resin or a replica.
Can I wear it in the water? Yes. It is made to be worn surfing, swimming and in the shower.
Can I pick my tooth size? Choker lengths (14"–17") all come with a small tooth. For a medium or large tooth, choose a longer necklace like our Classic Bull or Lemon.
Can I request a certain color or shade? Yes. Leave a note with your order number in the chat box (bottom right) and we'll do our best to match it.








