Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon K & B Diamond and Stone Gauge by Grobet Sale $20.00 | / SKU 35-562 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available K & B Diamond and Stone Gauge Aluminum pocket gauge for measuring loose stones and settings ranging from .03 to 4 carats. A birthstone chart is embossed on the reverse side.