Diamond Tweezer with Side Lock (Grooved or Smooth Tip)

Inspect, grade, sort, and mount loose diamonds and precious gemstones with zero-drop security. Engineered from anti-magnetic, corrosion-resistant stainless steel, these 158mm Diamond Tweezers with Side Lock feature a knurled sliding lock mechanism that firmly holds stones in place without requiring continuous finger pressure. Available in both Grooved (Serrated) and Smooth (Non-Grooved) inner jaw profiles, this series provides tailored tip sizes ranging from Extra-Fine (0.30 mm) for melee under 0.15 ct up to Extra-Large (1.80 mm) for large gemstones over 5.0 carats.

Why Choose Locking Diamond Tweezers

• Positive Side Slide Lock: Knurled mechanical slide lock secures the tweezer arms at the exact clamping tension needed, preventing stone drops, hand cramping, or shoot-offs during grading and loupe inspection.

• Dual Jaw Texture Profiles:

  • Grooved Tip (Models ending in '1'): Features precision-machined internal serrations (0.5 mm × 8 mm) that firmly grip faceted gemstone girdles without slipping.

  • Smooth Tip: Smooth, non-serrated inner jaws prevent surface scratches and edge abrasion on softer stones, pearls, and fragile faceted gems.

• Calibrated Tip Sizing (0.30 mm to 1.80 mm): Five distinct tip widths match specific diamond carat weights, preventing micro-melee from turning sideways or large gems from rocking.

• Durable Stainless Steel Build: 158 mm spring-tempered stainless steel body delivers tactile feedback, corrosion resistance against bench chemicals, and a balanced 22.5 g weight.

• Ribbed Anti-Slip Body: Knurled exterior grip channels provide positive thumb-and-finger traction during detailed sorting and gemstone arrangement.

Technical Specifications & Complete Model Matrix