Best Divers' Knives & Shears Under $100 (2026)

• 7 products compared from 2 brands • avg ItemOracle score 3.6/5

We ranked items by value score using blade and sheath materials, edge configuration, ergonomics, and overall utility for diving tasks under $100

The Verdict

Top Picks

  1. 1
    Cressi Skorpion Divers' Knife with tempered blade

    Best Overall Cressi Skorpion Divers' Knife with tempered blade

    CRESSI • ★ 3.9/5 • Budget

    Best for tempered-blade durability: durable tempered steel blade and secure sheath designed for spearfishing and general underwater cutting

    Diving knife with tempered AISI 304 steel blade, smooth and serrated edges, and wire cutter. One dual-edged blade design with a blunt/pointed tip option; includes a secure sheath. Customers note solid build and sharp edge, with some rust concerns after first use

    • tempered blade
    • dual-tip blade options
    • integrated wire cutter
    Buy at Amazon →
  2. 2
    Cressi Skorpion diving knife with dual-edge blade

    Cressi Skorpion diving knife with dual-edge blade

    Cressi • ★ 3.8/5 • Mid-Range

    Best for versatile cutting: dual-edge blade option offers slicing and sawing performance for varied underwater tasks

    Diving knife with tempered AISI 304 steel blade, smooth and serrated edges plus a wire cutter. Features a pointed and blunt tip option and a 9.125 in total length; includes a secure sheath. Users note solid build and sharp edge, with some rust concerns after first use

    • dual-edge blade with wire cutter
    • tempered stainless blade
    • two tip options (pointed/ blunt)
    Check current price on Amazon →
  3. 3
    Cressi Borg Long Blade Diver Knife

    Cressi Borg Long Blade Diver Knife

    CRESSI • ★ 3.6/5 • Mid-Range

    Best for long-blade reach: extended blade length with a glove-friendly handle for improved control during spearfishing

    A modern, tempered 304 stainless steel dive knife with dual-edged blade and serrated section for line cutting. Ergonomic handle designed for secure grip with gloves; features a small technopolymer thumb tab separating blade and handle

    • dual-edged straight and serrated blade
    • ergonomic, glove-friendly handle
    • temper and stainless steel construction
    Check current price on Amazon →
  4. 4
    Tanu Dive and Rescue Knife with Sheath

    Tanu Dive and Rescue Knife with Sheath

    GEAR AID • ★ 3.6/5 • Mid-Range

    Best budget rescue knife: simple stainless construction with a sheath-focused design for line-cutting and saltwater use

    Divers' knife with blunt tip, 304 stainless blade and line cutter. Secure rubberized handle with finger stop for safety; versatile for diving, fishing, or paddling. Customers note rust resistance, solid build, but mixed grip/sharpness on arrival

    • blunt-tip design for safety
    • versatile blade (straight and serrated)
    • secure grip with finger stop
    Check current price on Amazon →
  5. 5
    Tanu Dive and Rescue Knife with Sheath

    Tanu Dive and Rescue Knife with Sheath

    GEAR AID • ★ 3.5/5 • Mid-Range

    Best emergency cutting option: compact rescue-focused design prioritizing quick access and reliable line-cutting

    Dive-ready 304 stainless-steel knife with blunt tip for safe inflatables; includes line cutter and double-edge blade. Customers note rust resistance and solid build, with mixed feelings about grip and sharpness

    • blunt-tip safety design
    • multipurpose blade features
    • secure rubberized handle
    Check current price on Amazon →
  6. 6
    Tanu Dive and Rescue Knife with Sheath

    Tanu Dive and Rescue Knife with Sheath

    GEAR AID • ★ 3.5/5 • Mid-Range

    Best stainless utility knife: robust stainless blade and practical sheath features suited for general underwater use

    multipurpose 304 stainless-steel dive knife with blunt tip for safety; metal line cutter and double-edge blade for various tasks. customers note rust resistance and secure leg fit, with some concerns about grip and sharpness

    • blunt tip prevents puncture risk
    • dual-edge blade versatility
    • surface-malt handle grip stability
    Check current price on Amazon →
  7. 7
    Tanu Dive and Rescue Knife with Sheath, 304 Stainless

    Tanu Dive and Rescue Knife with Sheath, 304 Stainless

    GEAR AID • ★ 3.4/5 • Mid-Range

    Best for heavier-duty stainless use: 304 stainless blade with sheath options targeting durability in saltwater environments

    Diving knife with blunt tip and double-edged blade, mounted to dive gear for quick access. Durable stainless steel with rubberized handle and finger guard for safety; some users note grip is hard to pull out

    • blunt tip for safety
    • saltwater resistant stainless steel
    • mounted dive-access knife
    Check current price on Amazon →

Buying Guide

Blade material and corrosion resistance

Choose tempered or 304 stainless steel blades for a balance of edge retention and saltwater corrosion resistance

Edge type: serrated, plain, or dual

Dual-edge or combo blades give slicing and sawing capability, while serrated sections and line-cutters handle braided cord and kelp more effectively

Sheath retention and mounting

Look for sheaths with secure locking, belt or leg mounts, and multiple orientation options to keep the knife accessible and stable underwater

Handle ergonomics and glove use

A glove-friendly, non-slip handle profile improves control when wet or wearing thick gloves during spearfishing or cold-water dives

Rescue features and line-cutters

Consider dedicated line-cutters or blunt-tipped rescue blades for emergency freeing without creating puncture hazards