Diamond & Diamond Grading Comprehensive
Exam Graded A+ (Verified)
A bourse is a(n)... - ANSWER-diamond buying and selling club
A city, region or country with a large number of gemstone manufacturers is called a... -
ANSWER-cutting center
A diamond grading system provides... - ANSWER-a consistent way to communicate
diamond quality
A diamond's clarity and color grades indicate its... - ANSWER-quality
a diamonds face up pattern reveals... - ANSWER-almost all of the cutters fashioning
choices
A diamonds specific formation conditions are directly responsible for it's ________ -
ANSWER-it's hardness and durability.
a fashioned diamonds optical display is meant to be seen... - ANSWER-face up and in
motion
a mining company must consider a potential mines... - ANSWER-location, climate and
political conditions
A wholesaler is someone who... - ANSWER-sells to retailers.
Abrasion (Abr) - 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. - ANSWER-The late 1800's
Adamantine luster - ANSWER-The highest degree of luster possible in a transparent
material. (Assignment 8)
admantine luster - ANSWER-the highest degree of luster possible in a transparent
material
African diamonds are recovered from... - ANSWER-alluvial, pipe and marine deposites
Aggregate - ANSWER-A solid mass of individual, randomly oriented crystals, intergrown
or held together by a natural binding agent. (Assignment 7)
,agrregate - ANSWER-a solid mass of individial, randomly oriented crystals, intergrown
or held together by a natural bind agent
Alluvial deposit - 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)... - ANSWER-appraisal
Angle of incidence - ANSWER-The angle at which a ray of light strikes a surface,
measured from the normal. (Assignment 8)
angle of incidence - ANSWER-the angle at which a ray of light strikes a surface,
mesasured from the normal
angle of reflection - ANSWER-the angle between the mornal and a reflected ray of light
Angle of reflection - ANSWER-The angle between the normal and a reflected ray of
light. (Assignment 8)
Annealing - ANSWER-Using heat to stabilize irradiated color in gemstones.
(Assignment 12)
another name for the cubic crystal system is... - ANSWER-isometric
Appraisal - 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? - ANSWER-
Primary deposits!
Argyle mine is famous for... - ANSWER-producing rare and valuable pink diamonds
atoms in a gem that arent part of its essential chemical composition are called... -
ANSWER-trace elements
Average girdle diameter - ANSWER-The result achieved by adding the smallest and
largest girdle measurements of a round brilliant and dividing by two. (Assignment 14)
Bast - ANSWER-Frosted rough diamond. "Bark" in Dutch. (Assignment 9)
Bearded Girdle (BG) - 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... - 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... - ANSWER-India and Brazil
Belly - ANSWER-The slightly curving center of the long side of a pear, marquise, heart,
or oval. (Assignment 16)
Beneficiation - 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... - ANSWER-their natural
mineral resources
Best Practices Principles (BPP) - ANSWER-De Beers' formalized commitment of itself
and its sightholders to the highest ethical standards. (Assignment 3)
Blemish - ANSWER-Clarity characteristic that's confined to the surface of a polished
gemstone. (Assignment 10)
Block caving - 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)
Blocking - ANSWER-Placing the first 17 or 18 facets on a diamond. (Assignment 9)
Bow-tie - ANSWER-A dark area across the center of an elongated brilliant cut.
(Assignment 16)
Brick-and-mortar retailer - ANSWER-A traditional store consisting of walls and a fixed
location. (Assignment 3)
Brightness - ANSWER-The effect of all the diamond's internal and external reflections of
white light. (Assignment 8)
Brilliant cut - ANSWER-A cutting style in which triangular and kite-shaped facets radiate
from a gem's center toward its girdle. (Assignment 16)
Brillianteering - ANSWER-Placement and polishing of the star and upper and lower
girdle facets. (Assignment 9)
Bruise (Br) - ANSWER-A tiny area of impact accompanied by very small, root-like
feathers visible at 10X magnification; typically occurs at a facet junction. (Assignment
10)
Bruting - ANSWER-Forming the basic face-up outline of a diamond to prepare it for
faceting. (Assignment 9)
Exam Graded A+ (Verified)
A bourse is a(n)... - ANSWER-diamond buying and selling club
A city, region or country with a large number of gemstone manufacturers is called a... -
ANSWER-cutting center
A diamond grading system provides... - ANSWER-a consistent way to communicate
diamond quality
A diamond's clarity and color grades indicate its... - ANSWER-quality
a diamonds face up pattern reveals... - ANSWER-almost all of the cutters fashioning
choices
A diamonds specific formation conditions are directly responsible for it's ________ -
ANSWER-it's hardness and durability.
a fashioned diamonds optical display is meant to be seen... - ANSWER-face up and in
motion
a mining company must consider a potential mines... - ANSWER-location, climate and
political conditions
A wholesaler is someone who... - ANSWER-sells to retailers.
Abrasion (Abr) - 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. - ANSWER-The late 1800's
Adamantine luster - ANSWER-The highest degree of luster possible in a transparent
material. (Assignment 8)
admantine luster - ANSWER-the highest degree of luster possible in a transparent
material
African diamonds are recovered from... - ANSWER-alluvial, pipe and marine deposites
Aggregate - ANSWER-A solid mass of individual, randomly oriented crystals, intergrown
or held together by a natural binding agent. (Assignment 7)
,agrregate - ANSWER-a solid mass of individial, randomly oriented crystals, intergrown
or held together by a natural bind agent
Alluvial deposit - 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)... - ANSWER-appraisal
Angle of incidence - ANSWER-The angle at which a ray of light strikes a surface,
measured from the normal. (Assignment 8)
angle of incidence - ANSWER-the angle at which a ray of light strikes a surface,
mesasured from the normal
angle of reflection - ANSWER-the angle between the mornal and a reflected ray of light
Angle of reflection - ANSWER-The angle between the normal and a reflected ray of
light. (Assignment 8)
Annealing - ANSWER-Using heat to stabilize irradiated color in gemstones.
(Assignment 12)
another name for the cubic crystal system is... - ANSWER-isometric
Appraisal - 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? - ANSWER-
Primary deposits!
Argyle mine is famous for... - ANSWER-producing rare and valuable pink diamonds
atoms in a gem that arent part of its essential chemical composition are called... -
ANSWER-trace elements
Average girdle diameter - ANSWER-The result achieved by adding the smallest and
largest girdle measurements of a round brilliant and dividing by two. (Assignment 14)
Bast - ANSWER-Frosted rough diamond. "Bark" in Dutch. (Assignment 9)
Bearded Girdle (BG) - 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... - 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... - ANSWER-India and Brazil
Belly - ANSWER-The slightly curving center of the long side of a pear, marquise, heart,
or oval. (Assignment 16)
Beneficiation - 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... - ANSWER-their natural
mineral resources
Best Practices Principles (BPP) - ANSWER-De Beers' formalized commitment of itself
and its sightholders to the highest ethical standards. (Assignment 3)
Blemish - ANSWER-Clarity characteristic that's confined to the surface of a polished
gemstone. (Assignment 10)
Block caving - 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)
Blocking - ANSWER-Placing the first 17 or 18 facets on a diamond. (Assignment 9)
Bow-tie - ANSWER-A dark area across the center of an elongated brilliant cut.
(Assignment 16)
Brick-and-mortar retailer - ANSWER-A traditional store consisting of walls and a fixed
location. (Assignment 3)
Brightness - ANSWER-The effect of all the diamond's internal and external reflections of
white light. (Assignment 8)
Brilliant cut - ANSWER-A cutting style in which triangular and kite-shaped facets radiate
from a gem's center toward its girdle. (Assignment 16)
Brillianteering - ANSWER-Placement and polishing of the star and upper and lower
girdle facets. (Assignment 9)
Bruise (Br) - ANSWER-A tiny area of impact accompanied by very small, root-like
feathers visible at 10X magnification; typically occurs at a facet junction. (Assignment
10)
Bruting - ANSWER-Forming the basic face-up outline of a diamond to prepare it for
faceting. (Assignment 9)
