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Inspection & Measurement

Diamond & Gemstone Tester

KYG0239

Culti Diamond Selector III

CULTI · DIAMOND SELECTOR III

Portable diamond tester for quick, reliable separation of diamonds from stimulants, featuring dual indicators and adjustable sensitivity.

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Inspection & Measurement

Specifications

Detection MethodHeat conductivity with dual indication (red light & sound)
Sensitivity AdjustmentYes, according to stone size and temperature
Metal Contact AlertYes, buzzer tone
Weight64 g
Powered by2 × AAA alkaline batteries (included)
Compatible StonesDetects natural diamond vs. cubic zirconia, synthetic spinel, rutile, strontium titanate, zircon, white sapphire, G.G.G., Y.A.G., lithium tantalate. Cannot distinguish moissanite.
User LevelSuitable for beginners and professionals
AccessoriesLoose stone holder, black vinyl case, instruction manual included
Package Size85 × 55 × 15 mm

Overview

Highlights

  • Dual indication by red light and sound for clear results
  • Portable, card-sized and lightweight design
  • Adjustable sensitivity for different stone sizes and temperatures

Applications

  • Gemstone authenticity verification at jewelry shops or gem fairs
  • Quick at-home testing of loose or set stones
  • Quality control in jewelry production and trading

Overview

The Culti Diamond Selector III is a compact, portable tool designed for reliable, instant discrimination between diamonds and their stimulants through a simple one-touch operation using heat conductivity measurements. Its dual indicator system uses both red light and sound to alert users to genuine diamonds, ensuring clear and immediate results even for beginners.

Adjustable sensitivity supports verification of stones of various sizes and settings, while a metal alert prevents testing errors caused by metal contact. The tester easily identifies diamonds from cubic zirconia, synthetic white spinel, rutile, and other common simulants, providing peace of mind when evaluating loose or mounted gemstones. Package includes batteries, stone holder, protective vinyl case, and instruction manual.