- Study guides, Class notes & Summaries

One factor used to determine the clarity grade of a diamond is an inclusion's A. shape. B. texture. C. contour. D. location. - Answer-location Inclusions or blemishes that establish the clarity grade of a diamond are collectively called A. markers. B. highlighters. C. indicator characteristics. D. grade-setting characteristics. - Answer-grade-setting characteristics In most cases, the easier it is to see a clarity characteristic, the A. less durable the stone. B. low...

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4 pages

Written in 2024/2025

Grade A+

lectknancy

Removal of mineral-bearing ore from a surface excavation is called A. drift mining. B. open-pit mining. C. open-air mining. D. original-source mining. - Answer-open-pit mining Russia's significant diamond deposits are in A. Siberia. B. Belorussia. C. the Crimea. D. the Kaliningrad Oglast. - Answer-Siberia Shortly before the discovery of the South African deposits, the world's major diamond producer was A. India. B. Brazil. C. Russia. D. Canada. - Answer-Brazil...

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4 pages

Written in 2024/2025

Grade A+

lectknancy

A loupe used for clarity grading must be corrected for chromatic and - Answer-Spherical distortion Large, high-quality diamonds are... - Answer-Graded much more thoroughly than small, low-quality ones Once diamond deposits are located, mining companies... - Answer-Must spend additional time and money to evaluate and develop them Reputable gem labs don't grade mounted diamonds because... - Answer-Mountings hide details of clarity and cut Diamond prices on wholesale price lists... -...

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18 pages

Written in 2024/2025

Grade A+

lectknancy

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 ...

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3 pages

Written in 2024/2025

Grade A+

lectknancy

Improved technology. - Answer-The shift in emphasis from alluvial to primary diamond mining was due to Pipe, alluvial, and marine deposits. - Answer-African diamonds are recovered from Siberia. - Answer-Russia's significant diamond deposits are in Should be plotted on both the crown and pavilion diagrams - Answer-A feather that reaches a bezel surface as well as the surface of the pavilion main directly under the bezel Feather - Answer-In a stone with these clarity characteristics...

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8 pages

Written in 2024/2025

Grade A+

lectknancy

Wholesale price lists are usually organized according to A. recent auction prices. B. traditional jewelry-buying seasons. C. specific combinations of the Four Cs. D. sales at major diamond-trading centers. - Answer-specific combinations of the Four Cs A diamond's clarity and color grades indicate its A. quality. B. popularity. C. retail price. D. wholesale price. - Answer-quality Substantial price discounts are available to retailers and jewelry manufacturers who A. tr...

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4 pages

Written in 2024/2025

Grade A+

lectknancy

Diamond Essentials Exam Questions and Answers 100% Pass | 2024/2025 Update ____ is an important factor in diamond jewelry sales. - Romance Diamond is a mineral made of a single element: ____ - Carbon A diamond's value is based on its own unique combination of the ____ - Four Cs ____ normally have a bigger impact on a diamond's beauty and value than blemishes - Inclusions Diamond is the most ____ gemstone - Durable Diamonds are expensive because they're ____ and costly to mine - Rar...

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16 pages

Written in 2024/2025

Grade A+

JOSHCLAY

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 ...

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4 pages

Written in 2023/2024

Grade A+

Fyndlay

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 ...

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4 pages

Written in 2023/2024

Grade A+

TheStar

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 ...

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4 pages

Written in 2023/2024

Grade A+

Brainbarter

The collective term for inclusions and blemishes Crown Top part of the gem above the girdle Culet Small facet at the bottom of a finished gem Durability A gemstone's ability to withstand wear, heat, and chemicals Facet A flat, polished surface on a finished gem Fancy cut Any gemstone shape or cutting style other than a standard round brilliant Fire The flashes of color you see in a polished diamond Four Cs

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4 pages

Written in 2023/2024

Grade A+

Thompson12

Hue your first impression of a color; the basic color of an object Irradiation a treatment that changes the color of a gem by exposing it to radioactive materials Masterstones a set of color comparison diamonds that defines GIA's diamond color grades in the normal (D-Z)range. Near-colorless a general term for diamonds in the G-to-J color range. Saturation a color's strength or intensity, ranging from a dull hue to a pure, vivid hue Tone a color's degree of darkness or lightness E...

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2 pages

Written in 2023/2024

Grade A+

Thompson12