Triple Hawk 10x Diamond Loupe by Swiss Axe. An industry favorite for decades, the hawk loupe offers unmatched optical quality. Featuring an ergonomic shape for a comfortable grip, the Hawk's 21mm compound triplet lens is aplanatic, achromatic and is coated for anti-reflection and clarity. With an exclusive locking mechanism to keep the lens protected, the Hawk Loupe's solid-grade aluminum housing and black anodized coating makes this a loupe that is built to last. Whether you are buying gems in Africa or grading diamonds in a New York laboratory, you will at the very least know the quality of the loupe in your hand.