Diamond Stone Sizer – Round

Diamond Stone Sizer – Round is an essential tool for jewelers and gemologists who need quick, accurate sizing of round diamonds. This sizer features graduated openings that accommodate stones from 0.5 carat (5mm) to 5 carat (11mm) diameter, making it ideal for sorting, grading, and matching stones during design and appraisal work. The precision-cut openings provide reliable visual reference points without damaging delicate stones. Perfect for bench work, inventory management, and client consultations where immediate size verification is critical.