Everybody loves a little diamond 101.
Trivia, facts about diamonds and the 4C’s contain tons and tons of useful information that’s both fascinating and deep.
Hopefully this will make learning fun for anyone who craves knowledge about the most sought after rock in the world…
Grab a pencil and some paper. This test is made up of 50 questions. Some multiple-choice, some true and false and some fill-in-the-blanks, but all fun.
Write your answers down. Grade them at the end of the test where you will find both answers and scores. Enjoy! But beware…
Some questions are tricky. :)
So here we go… I present to you:
The diamond quiz:
A brilliant cut diamond has how many facets?
The brilliant cut diamond is the most popular cut of diamond in the world?
The word “adamas” means “diamond” in German?
All diamonds have a girdle equal to 100% width?
Diamonds can be cut into any shape in the world?
Fluorescence in a diamond can mean:
- A diamond can glow-in-the-dark
- A diamond has many flashes of color in it
- A diamond has double the amount of brilliance
- Fluoride inclusions can be found inside the diamond
Diamond is the hardest substance in the world?
All diamonds can cut glass?
VS2 means there are two very small inclusions in the diamond?
Diamond is the #1 spot on the MOH’s scale of hardness?
The culet is the pointed tip at the base of the pavilion?
What causes a diamond to have what they call a “fish-eye”?
- A large culet
- A thick girdle
- A narrow cut
- Extra facets
What causes a “flat tire” in a diamond?
- An uneven girdle
- An unpolished facet
- Flat pavilion facets
- Grain lines all in a row
The table of a round brilliant cut diamond is what shape?
- Star shaped
Diamonds cannot be burnt?
Diamontologists grade diamonds with what powered microscope?
The crown of a diamond refers to what?
- The outer circumference of a diamond
- The width of the table
- The top part of the diamond
- The bottom part of the diamond
You can’t chip a diamond?
The largest diamond in the world is what carat weight?
- 509 carats
- 3106 carats
- 617 carats
- 423 carats
Fire in a diamond refers to what?
- The temperature a diamond burns at
- The amount of heat a diamond gives off
- How red a diamond’s body tone is
- The amount of colored light a diamond gives off
Diamonds can float in water?
Diamonds are mined from what parent rock?
- Diamond rock
- Iron deposits
Diamonds grow in what crystalline formation?
A bearded girdle is a girdle that…
- Has multiple hairline cracks around its edge
- Has long facets that extend deep into the pavilion
- Is rough and natural, not polished or smooth
- Has long straight facet lines cut into its edge
There is no ABC in diamond color because…
- ABC are saved for the fancy colors, like champagne color
- They didn’t want people to mix the letters with report numbers
- ABC was banned in the old days because of superstitions
- ABC was often confused with random gradings in the old days
You can crush a diamond with a hammer?
GIA terms SI3 clarity diamonds as “slightly imperfect”?
The ideal millimeter size of a 1.00 carat brilliant cut diamond is:
Who devised the ideal cut diamond?
The specific gravity of a diamond is:
Black diamonds are fancy black in color and very high in clarity?
All marquise cut diamonds have a “bow-tie”?
“SI” stands for:
A “natural” is what?
- A clean piece of diamond
- A rough spot on the diamond
- A diamond with no color
- An extra large girdle
Diamond was first given as an engagement ring in what year?
Diamond is the birthstone for what month?
Diamonds are actually 10x harder than a ruby?
A chipped diamond is worthless?
What gemstone can polish a diamond?
The rarest fancy color found in diamond is:
What can make a diamond appear foggy?
- Carat weight
A half-carat is how many points?
One reason a diamond can be given extra facets is:
- To cut out small inclusions
- To widen the pavilion
- To enhance its color
- To enhance its polish
Black inclusions are better than white inclusions?
The depth of a diamond is a combination of:
- Table, girdle, pavilion
- Crown, pavilion, culet
- Table, pavilion, culet
- Crown, girdle, pavilion
The distinct line that cuts through the base of the pavilion from a side view is caused by what effect?
- Reflection of the girdle
- Light leaking out of the diamond
- Light bouncing across the pavilion
- A mirror image of the table
A trigon is what?
- Triangular pattern on the girdle
- The top 3 triangles of the table
- The bottom 3 pavilion facets
- The outer shape of the culet
Diamonds make a good investment?
Diamonds that are “faint yellow” are considered “fancy colored” diamonds?
- The way a diamond looks when you squint your eyes
- The amount of reflection a diamond has
- The fun house effect a pavilion makes
- The sparkle effects in a diamond
51: Extra credit worth 2 pts
Diamond is the traditional anniversary gift for the 50th anniversary?
52: Extra credit worth 2 pts
Diamonds come from outer space?
So there you have it…
50 ways to say I love diamonds!
How do you think you did?
Check your answers below.
(Grades and scores follow the answers.)
1) B – 58 – (57 if there is no culet.)
2) A – True – Always has been.
3) B – False – Adamas means diamond in Greek (diamant is German).
4) A – True – Diamond proportions are measured against the widest part of the diamond, which is the girdle.
5) A – True – Mickey mouse… You got it.
6) A – It’s true. Most diamonds with fluorescence can glow-in-the-dark.
7) B – Tricky. – False – Diamonds are the hardest “natural” substance, but not the hardest “man-made” substance on earth.
8) A – True – Diamond is harder than glass. The harder substance wins (rock, paper, scissors anyone?)
9) B – False – VS2 can have unlimited inclusions, although very small in nature.
10) B – False – Diamond is a 10 (the absolute hardness is 1600).
11) B – False – The culet is when they cut that pointed tip off. The resulting facet created is called the culet.
12) C – A narrow cut can make a diamond look a little glassy and fishy.
13) A – A flat tire often refers to an uneven girdle. Usually alternating from thin to thick.
14) A – The table is octagon in shape.
15) B – Diamonds burn at 1405 Degrees.
16) B – 10x magnification is what all diamonds are graded with.
17) C – The crown is the whole raised area above the girdle.
18) B – False. Yes, you can chip a diamond.
19) B – WOW!!! The Cullinan diamond is 3106 carats. That’s one large diamond.
20) D – Colored light is the fire in a diamond (brilliance is the white light).
21) B – False – Diamonds sink in water.
22) A – The parent rock is called Kimberlite, which is actually a volcanic rock.
23) A – Cubic is correct. Who says diamonds aren’t square?
24) A – Tiny fractures or hairline cracks around the girdle is called a bearded girdle.
25) D – The term was dropped so it wouldn’t confuse people.
26) A – True – Don’t try this at home.
27) B – False – GIA doesn’t recognize SI3 at all.
28) D – 6.5mm is ideal for a 1.00 carat diamond.
29) A – Marcel Tolkowsky created the ideal cut in 1919 (the American standard).
30) C – 3.52 is the specific gravity of a diamond.
31) B – False – Black diamonds are actually low in clarity.
32) B – False – If the diamond is cut too shallow it won’t have that pretty little bow-tie.
33) “SI” stands for “slightly included”.
34) B – A rough spot on a diamond is called a natural.
35) A – 1477 – Archduke Maximilian started the whole diamond ring craze.
36) Diamond is the official birthstone for the month of April.
37) B – False – Diamonds are only 4x harder than a ruby (corundum).
38) B – False – Diamonds can always be traded-in, sold, re-cut or re-polished.
39) The only gemstone hard enough to polish a diamond is another diamond.
40) B – Pink. Pink is the rarest fancy color there is.
41) C – A low clarity (usually I clarity) can make a diamond look foggy.
42) B – 50 points is a half-carat diamond (.50 carats).
43) A – Cutting out small inclusions around the girdle makes the diamond clarity better but also leaves extra facets.
44) B – False. White inclusions are hidden better in a diamond than black ones.
45) D – The depth is made up of the crown, girdle and pavilion (base of the diamond).
46) C – Light comes into the diamond, hits the pavilion, bounces across and gets cast back out of the stone resulting in brilliance and sparkle.
47) A – Trigons are triangular shapes that often appear around the girdle.
48) B – False – Diamonds should never be bought as an investment.
49) B – False – “Faint yellow” refers to diamond colors K, L and M.
50) D – The way a diamond sparkles is scintillation.
51) B – False. (2 pts) The 50th anniversary is the golden jubilee.
52) A – True. (2 pts) Look to the sky, diamonds could be in the next meteorite.
So how did you score?
Total up your points and grade yourself.
Diamond Novice – Ouch. Scary. Read more. Read a lot. You’ve only just begun. There’s so much about diamonds you just don’t know yet…
Diamond Rookie – Keep learning. Keep reading. Soak it all up. Buy some books on the subject. Keep at it grasshopper. Read: best diamond books to buy.
Diamond Scholar – Not bad. Not bad at all. You’ve got the basics and are understanding diamonds and the 4C’s. Nicely done. Respectable.
Diamond Specialist – Great! Impressive! You know your diamonds. You understand quality. You’ve done a great job learning, studying and training. Don’t stop.
Diamond Master – Excellent! Congratulations, it Looks like you know a thing or two about diamonds. Ever think about becoming a jeweler?
Expert Diamontologist – Perfection! I think you’re a real professional in the field and the tops when it comes to diamonds and diamond knowledge. :) Hats off to you.
If you have any questions or comments about this quiz, email me here.
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About the Author
Author Richard Scott. Certified Diamontologist and Gemologist. 30 years of experience.
Let Richard help you choose the best diamond, the most dazzling engagement ring, and save as much money as possible. Read more about the author here. Follow Richard on social media; Twitter, Facebook, Pinterest. Contact Richard Scott here.