Jo-Di Gauge and Conversion Booklet

Meet the Jo-Di Gauge and Conversion Booklet, a precision tool for accurate diamond weight estimation without removing the stone. Made from anodized black aluminum, this compact gauge is durable for daily use and pairs with a conversion booklet to translate measurements into carat equivalents.

Designed for jewelers, graders, and enthusiasts, the Jo-Di system delivers reliable results while preserving settings. The anodized finish resists wear, ensuring long-lasting performance in busy workrooms. The integrated conversion booklet lets you translate take-off measurements into meaningful carat values quickly, streamlining workflows.

• Precise diamond weight estimation without removing the stone
• Anodized black aluminum construction for rugged daily use
• Compact, portable gauge fits in a toolkit or pocket
• Conversion booklet to translate measurements into carat equivalents
• Fast, repeatable reference for consistent results

Enhance accuracy and confidence in every appraisal with the Jo-Di Gauge and Conversion Booklet. Ready to upgrade your measurement toolkit—order today and experience quick, dependable insights.