Otto Frei Black 10X Triplet Loupe with 18 mm Diameter Lens, Rubber Grip & Leather Case

The professional standard for diamond grading and gemstone inspection, this 10X triplet loupe delivers high-clarity magnification at an exceptional value. Triplet loupes are the industry benchmark — constructed with three lenses bonded together to produce edge-to-edge sharpness that single and doublet loupes simply cannot match.

This loupe is corrected for both spherical aberration (minimizing distortion at the edges) and chromatic aberration (eliminating color fringing that uncorrected loupes exhibit). The result is a clean, accurate, true-color view that professionals depend on for diamond clarity and color grading. Under GIA standards, if a flaw is not visible at 10X magnification, it does not affect the clarity grade — making a reliable, corrected 10X loupe an essential bench tool.

The 18 mm diameter lens provides a wide field of view, while the non-slip rubber grip ensures secure, comfortable handling during extended inspection sessions. Each loupe ships with a leather case for protection and storage.

Features

• 10X triplet construction — three lenses bonded together for superior optical performance
• Corrected for spherical aberration — minimal edge distortion
• Corrected for chromatic aberration — accurate color rendition across the full field
• 18 mm diameter lens for a wide, bright field of view
• Non-slip rubber grip for secure, comfortable handling
• Black metal housing
• Suitable for diamond clarity grading, color grading, and general gemstone inspection
• Includes a leather case for storage and protection

Specifications

What's Included

• 10X triplet loupe with rubber grip
• Leather case

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.