CDG Professional Standards & Competencies 3

Question 1

Which of the following is NOT typically included in a professional diamond grading report?

Accepted Answer

Retail market value

Answer

Grading reports document objective gemological properties; retail value appraisals are a separate service distinct from grading.

Question 2

A grader suspects that a submitted diamond has been laser-drilled to improve apparent clarity. The appropriate professional response is to:

Accepted Answer

Disclose the treatment on the grading report and document observations

Answer

Disclosure of detected treatments is mandatory on a professional grading report to ensure consumer protection and transparency.

Question 3

Continuing education requirements for certified diamond graders primarily serve to:

Accepted Answer

Keep professionals current with evolving detection technologies and industry standards

Answer

The gem industry continually advances; continuing education ensures graders stay current with new treatments, synthetics, and detection methods.

Question 4

When grading a parcel of melee diamonds, a professional grader should:

Accepted Answer

Apply sampling protocols appropriate for melee while documenting the methodology used

Answer

Melee grading uses accepted sampling and average-range protocols, but the methodology must be clearly documented on any accompanying report.

Question 5

A client claims a diamond returned from your laboratory has been switched. The best defense against such claims is:

Accepted Answer

Thorough intake documentation including measurements, weight, and photographs

Answer

Detailed intake documentation with weight, measurements, and photographs creates a verifiable record that protects both the laboratory and the client.

(CDG) Certified Diamond Grader Practice Test

(CDG) Certified Diamond Grader Practice Test

CDG Professional Standards & Competencies 3