Lock loose diamonds in precise axial alignment for hands-free inspection, grading, and showroom presentation without slippage or finger fatigue. Manufactured in Switzerland to exacting gemological standards, the Regine® Stainless Steel Diamond Tweezers with Lock & Groove (16 cm) integrate both a precision longitudinal alignment groove and an adjustable knurled slide-lock mechanism.
The continuous center groove runs through diamond-coated micro-serrated tips, seating round diamond girdles, colored gemstones, or cylindrical watch components along the tool's central axis to prevent tilting or popping out. Once positioned, the smooth slide lock engages with a push of the thumb, maintaining continuous clamping pressure so you can rotate the stone under a microscope or hand it to clients without drop risks. Finished with a glare-diffusing matte satin polish and milled finger serrations, this hybrid series is available in three dedicated sizes: FR1 (Fine), MR1 (Medium), and LR1 (Large).
Why Choose Regine® Locking & Grooved Diamond Tweezers
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Dual-Security System (Lock & Groove): Combines the self-centering stability of a center groove with a knurled slide lock, delivering hands-free security for grading and presentation.
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Axial Alignment Center Groove: The longitudinal groove seats round gemstone girdles directly on-center, eliminating tilting, off-axis rotation, and side slippage.
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Diamond-Coated Serrated Grip: Micro-serrated diamond texture across the inner jaws grips polished pavilion and crown facets without scratching or marring delicate stones.
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Anti-Glare Satin Finish: Matte brushed stainless surface diffuses high-intensity microscope spotlights and bench illumination, preventing glare while examining internal clarity characteristics.
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Swiss Spring-Tempered Stainless Steel: Precision-ground stainless construction resists corrosion from skin oils and workshop chemicals while retaining responsive spring tension.
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Ergonomic Milled Finger Serrations: Dual-sided machined ribs give the thumb and forefinger positive tactile control when setting jaw tension before engaging the lock.
Technical Specifications & Product Matrix
| Model Size | Tip & Groove Profile | Product Net Weight | Total Length | Locking Style | Recommended Applications |
| FR1 |
Fine Tip with Center Alignment Groove |
22.4 g |
16 cm (6.3 in) |
Knurled Slide Lock |
Calibrated accent diamonds, melee parcels, small round gems |
| MR1 |
Medium Tip with Center Alignment Groove |
22.8 g |
16 cm (6.3 in) |
Knurled Slide Lock |
0.30 ct to 1.50 ct diamonds, round colored stones, daily appraisal |
| LR1 |
Large Tip with Center Alignment Groove |
22.6 g |
16 cm (6.3 in) |
Knurled Slide Lock |
1.50 ct to 3.00+ ct solitaires, thick-girdle gems, heavy rough |
| Parameter Metric | Certified Factory Specification |
| Brand Authority |
Regine® Switzerland |
| Product Designation |
Stainless Steel Diamond Tweezers with Lock & Groove |
| Overall Length |
16 cm (160 mm / 6.3 inches) |
| Material Construction |
Hardened Spring-Tempered Stainless Steel |
| Alignment Feature |
Machined Longitudinal Center Groove |
| Locking System |
Knurled Slide Button with Guide Channel |
| Jaw Grip Type |
Diamond-Coated Micro-Serrated Internal Grip |
| Surface Finish |
Anti-Glare Matte Satin Brushed Polish |
| Handle Ergonomics |
Dual-Sided Machined Ribbed Anti-Slip Lines |
| Corrosion Resistance | Highly resistant to perspiration, ultrasonic detergents, and bench moisture |
Free Global Shipping
We process orders within 1-3 business days. Estimated standard international delivery is 6-12 business days.
14-Day Returns
We have a 14-day return policy. Items must be unused, with all original accessories, and in original packaging.
For full details, please refer to our Shipping and Refund policies at the bottom of the page.
