- Study guides, Class notes & Summaries

Diamond Grading ASSIGNMENT 4 Questions and Answers with Complete Solutions 2024 How far beneath the earth's surface do diamonds form? A. 15 to 30 miles (25 to 50 kilometers) B. 30 to 50 miles (50 to 75 kilometer) C. 50 to 90miles (75 to 140 kilometers) D. 90 to 140 miles (140 to 220 kilometers) - answer90 - 140 miles (140 to 220 kilometers) The deep vertical formations through which diamonds traveled to the surface are called A. Drifts B. Pipes C. Cratons D. Alluvials - answerpipes ...

-

4 pages

Written in 2023/2024

Grade A+

Brainbarter

Which diamond mine's huge production influenced the world market in the late 1980s? - Answer-Argyle A commitment to reserve a portion of the resources derived from any country for the economic development of that country is called - Answer-Benefaction A city, region, or country with a large number of gemstone manufacturers is called a - Answer-Cutting center One of the changes that resulted from De Beer's strategic review in 1999 was that De Beers - Answer-Changed the name of the ...

-

3 pages

Written in 2024/2025

Grade A+

lectknancy

Gia Diamonds & Diamond Grading Cumulative Practice | Exam Questions And Answers| Complete Study Guide With 100% Accurate Questions & Answers! Excellence Guaranteed!

-

7 pages

Written in 2026/2027

Grade A+

Apphia

Get ahead in your gemology studies with this comprehensive exam guide! This document provides a complete set of questions and answers covering every critical topic needed to pass your Diamond & Diamond Grading examination. Drawn from a comprehensive curriculum, this guide covers everything from the fundamental "Four Cs" and the diamond pipeline to advanced topics like clarity characteristics, fancy cuts, and synthetic diamonds. It features a robust Q&A format, complete with verified sol...

-

69 pages

Written in 2026/2027

Grade A+

Studymart

Diamond_Diamond_Grading_Exam_Questions_With_Complete_Solutions

-

51 pages

Written in 2025/2026

Grade A+

LeeErickson

Diamond_&_Diamond_Grading_Exam_Questions_With_Complete_Solutions

-

68 pages

Written in 2025/2026

Grade A+

LeeErickson

Diamond & Diamond Grading Exam Questions And Answers Latest 2025/2026

-

32 pages

Written in 2025/2026

Grade A+

LeeErickson

Diamond_&_Diamond_Grading_Exam_Questions_With_Complete_Solutions

-

68 pages

Written in 2025/2026

Grade A+

LeeErickson

Diamond & Diamond Grading Exam Questions With Complete Solutions Guaranteed Pass 2025/2026

-

51 pages

Written in 2025/2026

Grade A+

ProfJosephAdams

Diamond & Diamond Grading Exam With 10% Correct And Verified Answers

-

59 pages

Written in 2024/2025

Grade A+

Vendarsol

Diamond And Diamond Grading

-

23 pages

Written in 2024/2025

Grade A+

LectJordan

DDG 1 - Diamond grades provide a consistent, standardized way of communicating and comparing diamond quality - Answer-DDG 1 - Diamond grades are only part of the determination of diamond market value DDG 1 - The listed wholesale prices of diamonds depend on the market conditions that exist when the lists are published - Answer-DDG 1 - Large, high-quality diamonds are graded much more thoroughly than small, low-quality ones DDG 1 - Diamond's specific formation conditions are directly res...

-

9 pages

Written in 2024/2025

Grade A+

lectknancy

London Diamond Syndicate - Answer-What group was critical to De Beers's early sales strategy? Color - Answer-How are gem-quality rough diamonds sorted? Baby Boomers - Answer-What generation was first to connect with diamonds as a representation of lifetime commitment? India - Answer-Where did the diamond industry first start? Single-channel marketing - Answer-What describes the concept of centrally controlled supply, purchase, promotion, and sales of rough diamonds? Lower mantl...

-

13 pages

Written in 2024/2025

Grade A+

lectknancy

Beneficiation - Answer-A commitment to reserve a portion of the resources derived from any country for the economic development of that country. Blemish - Answer-Clarity characteristic that's confined to the surface of a polished gemstone. Characteristic or irregularity confined to the surface of a polished gemstone. Blockchain - Answer-A shared, unalterable ledger used to record transactions and track assets through a supply chain or business network. Blocking - Answer-Placing the f...

-

15 pages

Written in 2024/2025

Grade A+

lectknancy

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...

-

3 pages

Written in 2024/2025

Grade A+

lectknancy

What is the refractive index of a material with a small critical angle? A. Low B. Zero C. High D. Irrelevant - Answer-C. High What describes the separation of white light into its spectral colors? A. Brightness B. Brilliance C. Dispersion D. Scintillation - Answer-C. Dispersion What pattern can result from a deep pavilion? A. Fisheye B. Nailhead C. Radiating mains D. Hearts and arrows - Answer-B. Nailhead What describes the change in speed and/or direction when light travels...

-

3 pages

Written in 2024/2025

Grade A+

lectknancy

What shape is a diamond's unit cell? A. Cube B. Sphere C. Pyramid D. Cylindrical - Answer-A. Cube What is the optic character of a crystal when all light rays behave identically in all directions? A. Organic B. Anisotropic C. Singly refractive D. Doubly refractive - Answer-C. Singly refractive What is the only way to accurately determine diamond type? A. Spectroscopy B. Specific gravity C. Checking for strain D. Checking for cleavage - Answer-A. Spectroscopy In diamond, w...

-

3 pages

Written in 2024/2025

Grade A+

lectknancy

Diamond grades are - Answer-Diamond grades are constant: They don't change because they're used in appraisals rather than sales presentations.("Understanding and Using Diamond Grades" in Assignment 1.) Sieves are used to - Answer-sort small diamonds by size.(See "Beyond the Lab" in Assignment 1.) The most common type of appraisal is for - Answer-insurance replacement.(See "Appraisals" in Assignment 1.) Which mine caused dramatic growth in India's diamond cutti...

-

6 pages

Written in 2024/2025

Grade A+

lectknancy

A consistent way to communicate diamond quality - Answer-A diamond grading system provides... Sells to retailers - Answer-A wholesaler is someone who... Depend on the market conditions that exist when the lists are published - Answer-Diamonds prices on wholesale price lists Graded more thoroughly than small, low quality ones - Answer-Large, high-quality diamonds are... A result of the conditions under which it formed - Answer-Diamond's supreme hardness and durability are... Mus...

-

35 pages

Written in 2024/2025

Grade A+

lectknancy

Where are the majority of rough diamonds cut and polished? A. Surat, India B. Tel Aviv, Israel C. Antwerp, Belgium D. New York, United States - Answer-A. Surat, India What is an upstream segment of the diamond value chain? A. Cutting and polishing B. Jewelry manufacturing C. Sorting and distribution D. Faceted diamond trading - Answer-C. Sorting and distribution What business plan describes operation in multiple segments? A. Diamond pipeline B. Vertical integration C. Multi-chan...

3.0

(1)

3 pages

Written in 2024/2025

Grade A+

lectknancy

Exact diamond market value to a buyer - Answer-A diamond grading system provides Sells to retailers - Answer-A wholesaler is someone who Depend on the market conditions that exist when the lists are published - Answer-Diamond prices on wholesale price lists Graded much more thoroughly than small low quality ones - Answer-Large high quality diamonds Mountings hide detail of clarity and cut - Answer-Reputable gemological labs don't grade mounted diamonds because Sieves - Answer-D...

-

16 pages

Written in 2024/2025

Grade A+

lectknancy

Eye- Visible Inclusion - Answer-visible to the unaided eye without magnification grade setting characteristics - Answer-inclusions or blemishes that establish the clarity grade of a diamond plot - Answer-a map of a diamond's inclusions, blemishes, and facet arrangement relief - Answer-contrast between an inclusion and its host diamond what type of blemish can a stone have and still achieve the Flawless grade? - Answer-Extra facet not visible face up what are the 5 clarity facto...

-

2 pages

Written in 2024/2025

Grade A+

lectknancy