Which term describes an instrument that measures thermal conductivity to help separate natural and synthetic diamonds from most simulants?

Which term describes an instrument that measures thermal conductivity to help separate natural and synthetic diamonds from most simulants?

• A. Tang
• B. Thermal tester
• C. Tetrahedron
• D. Table percentage

Answer: (B)

Focusing on how heat moves through a gemstone is the core idea here. A thermal tester is designed to gauge thermal conductivity: diamonds pass heat extremely well because of their strong crystal lattice, so the tester detects a characteristic, high-conductivity response. Most simulants, like cubic zirconia or glass, don’t conduct heat nearly as well, so they read as non-diamond. This quick, non-destructive test helps separate natural or synthetic diamonds from common simulants in many cases, though distinguishing natural from synthetic diamonds often requires additional methods since their thermal conductivities are both very high. The other terms don’t describe a device for measuring heat transfer, so they don’t fit.

Focusing on how heat moves through a gemstone is the core idea here. A thermal tester is designed to gauge thermal conductivity: diamonds pass heat extremely well because of their strong crystal lattice, so the tester detects a characteristic, high-conductivity response. Most simulants, like cubic zirconia or glass, don’t conduct heat nearly as well, so they read as non-diamond. This quick, non-destructive test helps separate natural or synthetic diamonds from common simulants in many cases, though distinguishing natural from synthetic diamonds often requires additional methods since their thermal conductivities are both very high. The other terms don’t describe a device for measuring heat transfer, so they don’t fit.