Electronic Diamond Tester

WHAT'S INCLUDED:
• Electronic Diamond Tester (Battery included)

PRODUCT DETAILS & USAGE:
This diamond tester works by measuring thermal conductivity.
Diamonds have the highest thermal conductivity of any material. This tester cannot be fooled but be sure to follow instructions. You will need to weigh the stone and know the temperature of your room.
Dimensions: 6.5" x 1.6" x .85"
Power Supply: 9V Battery (included)