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GIA Diamonds and Diamond Grading Assignment 8 Questionnaire with Answers

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Why polish "windows" on the surface of frosted diamond rough? A. Retain weight B. View inclusions C. Improve brilliance D. Remove growth marks - Answer-B. View inclusions What improved the precision and efficiency of diamond cutting in the 1980s? A. Laser processing B. Motorized sawing C. Automated cleaving D. Mechanized bruting - Answer-A. Laser processing What enabled the mass production of faceted diamonds? A. Cast-iron polishing wheel B. Motorized diamond saw C. Coated iron wires D. Diamond dust - Answer-B. Motorized diamond saw What splitting method does not rely on crystal directions? A. Cleaving B. Polishing C. Laser sawing D. Blade sawing - Answer-C. Laser sawing What device allows cutters to adjust angles during polishing? A. Saw blade B. Scaife C. Tang D. Dop - Answer-C. Tang What step polishes the final facets of a diamond? A. Brillianteering B. Blocking C. Bruting D. Coning - Answer-A. Brillianteering Why did cutters first make a table cut? A. Ease of cut B. Avoid chips

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GIA Diamonds and Diamond Grading
Assignment 8 Questionnaire with
Answers
Why polish "windows" on the surface of frosted diamond rough?
A. Retain weight
B. View inclusions
C. Improve brilliance
D. Remove growth marks - Answer-B. View inclusions

What improved the precision and efficiency of diamond cutting in the 1980s?
A. Laser processing
B. Motorized sawing
C. Automated cleaving
D. Mechanized bruting - Answer-A. Laser processing

What enabled the mass production of faceted diamonds?
A. Cast-iron polishing wheel
B. Motorized diamond saw
C. Coated iron wires
D. Diamond dust - Answer-B. Motorized diamond saw

What splitting method does not rely on crystal directions?
A. Cleaving
B. Polishing
C. Laser sawing
D. Blade sawing - Answer-C. Laser sawing

What device allows cutters to adjust angles during polishing?
A. Saw blade
B. Scaife
C. Tang
D. Dop - Answer-C. Tang

What step polishes the final facets of a diamond?
A. Brillianteering
B. Blocking
C. Bruting
D. Coning - Answer-A. Brillianteering

Why did cutters first make a table cut?
A. Ease of cut
B. Avoid chips

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