Deck 5: Diamond Cutting, Polishing, and Grading

Question 1

Majority of Diamond cutting & +B106:B130polishing centres in India are in

A)mumbai
B)surat
C)jaipur
D)delhi

Answer 1

surat

Question 2

The ideal diamoneter of a 01 carat diamond is

A)5 mm
B)5.5 mm
C)6 mm
D)6.5 mm

Answer 2

6.5 mm

Question 3

Diamond Sight Holders go to which City to view DTC sight

A)london
B)dubai
C)johannesburg
D)gabron

Answer 3

gabron

Question 4

The ability of a mineral to resist scratch from other mineral is called as

A)scratch
B)hardness
C)toughness
D)resistance

Question 5

The hardness of diamond is

A)high
B)extremely high
C)medium
D)extremely low

Question 6

Rainbow colors from a diamonds crown are called as

A)fire
B)spectrum
C)dispersion
D)rainbow

Question 7

Which Diamond Simulant shows doubling and strong dispersion

A)zircon
B)diamond
C)synthetic moissanite
D)strontiam titanate

Question 8

Diamond Simulant are lower in which property in comparison to diamond

A)hardness
B)dispersion
C)sg
D)ri

Question 9

Diamond & Graphite are made up from

A)boron
B)carbon
C)nitrogen
D)oxygen

Question 10

Diamond is formed beneath the earths surface at what temperature

A)150? to 180?
B)1500? to 1800?
C)15000? to 18000?
D)none of the above

Question 11

Which word is included in the diamond 4Cs

A)conditioner
B)cream
C)carat
D)coolant

Question 12

Which word is included in the diamond 4Cs

A)cucumber
B)carton
C)cardboard
D)cut

Question 13

Which word is included in the diamond 4Cs

A)cutter
B)card
C)colour
D)crate

Question 14

Which word is included in the diamond 4Cs

A)candy
B)cash
C)clarity
D)cover

Question 15

Color Grading of Diamond starts from alphabet

A)a
B)b
C)c
D)d

Question 16

The last color grade of a diamond is denoted by alphabet

A)l
B)z
C)k
D)d

Question 17

Highest Clarity Grade of a diamond is

A)imperfect
B)very slightly included
C)slightly included
D)flawless

Question 18

The Lowest Clarity Grade of a Diamond Is

A)i 3
B)vs
C)si
D)if

Question 19

Off Centre Culet is factor of

A)cut
B)polish
C)colour
D)symmetry

Question 20

Girdle not Round is a factor of

A)rough
B)polish
C)symmetry
D)shape

Question 21

Open culet is a factor of

A)damage
B)polish
C)symmetry
D)carat

Question 22

Symmetry in diamond is important for

A)maximum brilliance
B)maximum heat
C)maximum hardness
D)maximum colour

Question 23

Presence of Boron Gives what colour to Diamond

A)black
B)yellow
C)blue
D)brown

Question 24

Inclusion plotting in the softwares is

A)always perfect
B)needs to be checked manually
C)not reliable
D)none of the above

Question 25

If immersion technology is not used, how can it be seen inside a coated diamond

A)by coating
B)by opening window
C)by simple mapping
D)none of the above