Diamond & Pearl Gauge Plastic Card Type

The Diamond & Pearl Gauge is a practical plastic card-style measuring tool designed for jewelers who need quick, accurate size and weight references for both diamonds and pearls. Compact and easy to keep at the bench, this combination gauge features clearly marked holes on both sides for fast identification without the need for a scale or loupe calculation.

One side displays diamond sizes ranging from 1/64 ct to 6 carats and pearl sizes from 1/2 to 40, allowing you to visually match stones and pearls by size in familiar units. Flip the card over, and the reverse side provides metric carat weights for the diamond holes and metric grain weights for the pearl holes, giving you a complete dual-reference tool in a single lightweight card.

Features

• Combination diamond and pearl gauge in a convenient plastic card format
• Diamond size markings from 1/64 ct to 6 carats
• Pearl size markings from 1/2 to 40
• Reverse side displays metric carat weights for diamond holes
• Reverse side displays metric grain weights for pearl holes
• Compact card design ideal for bench use or on-the-go reference

Specifications