Diamond Diamond Grading Exam Latest

Diamond & Diamond Grading Exam Latest Update - Source with 470 Questions and 100% Verified Detailed Correct Answers Guaranteed A+ Approved by Professor

______ of diamonds depend on the market conditions that exist when the lists are

published - CORRECT ANSWER: the listed wholesale prices

A bourse is a(n)... - CORRECT ANSWER: diamond buying and selling club

A city, region or country with a large number of gemstone manufacturers is called a... -

CORRECT ANSWER: cutting center

A diamond grading system provides... - CORRECT ANSWER: a consistent way to

communicate diamond quality

A diamond's clarity and color grades indicate its... - CORRECT ANSWER: quality

a diamonds face up pattern reveals... - CORRECT ANSWER: almost all of the cutters fashioning choices

A diamonds specific formation conditions are directly responsible for it's ________ -

CORRECT ANSWER: it's hardness and durability.

a fashioned diamonds optical display is meant to be seen... - CORRECT ANSWER:

face up and in motion

a mining company must consider a potential mines... - CORRECT ANSWER: location,

climate and political conditions 1 / 4

A wholesaler is someone who... - CORRECT ANSWER: sells to retailers.

Abrasion (Abr) - CORRECT ANSWER: A series of minute nicks along the facet junctions of a fashioned diamond; gives the edges a white or fuzzy appearance. (Assignment 10)

Abundant South African diamond sources appeared in XXXX, just when diamond

demand broadened. - CORRECT ANSWER: The late 1800's

Adamantine luster - CORRECT ANSWER: The highest degree of luster possible in a

transparent material. (Assignment 8)

admantine luster - CORRECT ANSWER: the highest degree of luster possible in a

transparent material

African diamonds are recovered from... - CORRECT ANSWER: alluvial, pipe and

marine deposites

Aggregate - CORRECT ANSWER: A solid mass of individual, randomly oriented

crystals, intergrown or held together by a natural binding agent. (Assignment 7)

agrregate - CORRECT ANSWER: a solid mass of individial, randomly oriented crystals, intergrown or held together by a natural bind agent

Alluvial deposit - CORRECT ANSWER: A deposit where gems are eroded from their

source rock, then transported away from the source and further concentrated.(Assignment 5)

An estimation of the value of an article is a(n)... - CORRECT ANSWER: appraisal

Angle of incidence - CORRECT ANSWER: The angle at which a ray of light strikes a surface, measured from the normal. (Assignment 8) 2 / 4

angle of incidence - CORRECT ANSWER: the angle at which a ray of light strikes a surface, mesasured from the normal

angle of reflection - CORRECT ANSWER: the angle between the mornal and a reflected ray of light

Angle of reflection - CORRECT ANSWER: The angle between the normal and a

reflected ray of light. (Assignment 8)

Annealing - CORRECT ANSWER: Using heat to stabilize irradiated color in gemstones.(Assignment 12)

another name for the cubic crystal system is... - CORRECT ANSWER: isometric

Appraisal - CORRECT ANSWER: An estimation of the value of an article, usually for insurance purposes. (Assignment 1)

Are diamonds more concentrated in primary deposits or marine deposits? - CORRECT

ANSWER: Primary deposits!

Argyle mine is famous for... - CORRECT ANSWER: producing rare and valuable pink

diamonds

atoms in a gem that arent part of its essential chemical composition are called... -

CORRECT ANSWER: trace elements

Average girdle diameter - CORRECT ANSWER: The result achieved by adding the

smallest and largest girdle measurements of a round brilliant and dividing by two.(Assignment 14)

Bast - CORRECT ANSWER: Frosted rough diamond. "Bark" in Dutch. (Assignment 9) 3 / 4

Bearded Girdle (BG) - CORRECT ANSWER: Very small feathers that extend from the

girdle surface into the stone; can result from the cutting process. (Assignment 10)

Because the Australians believed the CSO's marketing favored large stones over

smaller ones, they... - CORRECT ANSWER: aggressively promoted jewelry made with

their own tiny gems

Before the discovery of South Africa's diamond deposits, the world's two major

producers were... - CORRECT ANSWER: India and Brazil

Belly - CORRECT ANSWER: The slightly curving center of the long side of a pear,

marquise, heart, or oval. (Assignment 16)

Beneficiation - CORRECT ANSWER: A commitment to reserve a portion of the

resources derived from any country for the economic development of that country.(Assignment 3)

Beneficiation helps countries exercise greater control over... - CORRECT ANSWER: their natural mineral resources

Best Practices Principles (BPP) - CORRECT ANSWER: De Beers' formalized

commitment of itself and its sightholders to the highest ethical standards. (Assignment 3)

Blemish - CORRECT ANSWER: Clarity characteristic that's confined to the surface of a polished gemstone. (Assignment 10)

Block caving - CORRECT ANSWER: Underground mining that involves building a

concrete-lined tunnel under an ore deposit, then collecting the ore through openings in the liner. (Assignment 6)

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