Waterproof Ancient Marine Fossil Necklace – Choose Your Fossil
Own a genuine piece of the ocean! This authentic necklace features a real, ancient shark tooth fossil (2–23 million years old), ethically sourced by scuba diving off Florida's coast and hand-wrapped in silver wire for a clean, classic finish. 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.
- Choose your shark: Bull, Tiger, Sand Tiger, Megalodon, Snaggletooth, Lemon or Mako.
- Timeless style: the classic silver wrap keeps the focus on the fossil itself.
Which length should I get?
- 14": choker. Sits high and snug around the neck.
- 16": sits at the base of the neck. A great standard length for kids.
- 18": the classic. Hits at the collarbone. Our most popular length.
- 20": just below the collarbone. A popular everyday length.
- 22": top of the chest. Great for showing off the pendant.
- 24": center of the chest. Easy to pull on and off.
Tooth size is matched to length: small teeth on 14"–16", medium on 18"–20" and large on 22"–24". Available in 16", 18", 22" or 24" with a silver wire wrap. Fit varies with neck and chest 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? Tooth size comes from the length you choose: small for 14"–16", medium for 18"–20" and large for 22"–24". Want a bigger tooth? Choose a longer length.
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.