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15 Fun Facts About Diamonds

While there are a lot of things to consider when selecting the right diamond for your engagement ring such as the 4 Cs, diamond shape, and sticking to your budget, have you ever wondered about the meaning and origin behind the diamond?   

The most prized precious stone on Earth, this alluring gemstone has been coveted for centuries and steeped in myth for its breathtaking brilliance and symbolic meaning. To help you learn more about this rich history of the diamond, we have gathered up some of our favorite fascinating facts and bits of lore surrounding this truly unique gemstone.   

Where do diamonds come from?  

Diamonds are the hardest natural stone on earth that are formed naturally from extreme temperatures and pressure beneath the Earth’s crust. Rough diamonds are brought to the Earth’s surface through volcanic activity. Natural diamonds are sourced from all around the world with the majority of supply coming from South Africa, Russia, and Canada.  

Brilliant Earth goes above and beyond the current industry standards to offer Beyond Conflict Free™ Diamonds with a listed origin of Canada or Botswana Sort. Our select group of diamond suppliers demonstrate a robust chain of custody protocol for their diamonds and have the ability to track and segregate diamonds by origin. We also offer lab created and recycled diamonds, both of which require no new mining. 

Learn more about Brilliant Earth’s responsible sourcing here

What is a diamond known for?  

Diamonds are known for their extreme hardness, unmatched brilliance, and rich sentimental value. They are made of nearly 100% carbon atoms and are so durable that the only other mineral that can scratch a diamond’s surface is another diamond.  

Why is a diamond so precious?  

Diamonds are nearly as old as the Earth and are increasing in rarity as they take billions of years to form. The formation starts in the depths of the Earth and very few of these carbon crystals actually make it to the Earth’s surface where they are then mined. 

 Interesting Diamond Facts  

1.The ancient Romans and Greeks believed that diamonds were tears cried by the gods or splinters from falling stars, and Romans believed that Cupid’s arrows were tipped with diamonds (perhaps the earliest association between diamonds and romantic love). 

2. Diamonds are nearly as old as the earth and take billions of years to form deep in the pit of the earth. Very few diamonds survive the trip from the depths of the earth to the crust where they can be mined. No two diamonds are the same and carry their own unique properties such as internal inclusions and color.  

3. Diamonds form about 100 miles below ground and have been carried to the earth’s surface by deep volcanic eruptions. 

4. Diamonds are made of a single element—they are nearly 100% carbon. Under the extreme heat and pressure far below the earth’s surface, the carbon atoms bond in a unique way that results in diamonds’ beautiful and rare crystalline structure. 

5. The word diamond derives from the Greek word “adamas,” which means invincible or indestructible. Which makes sense because… 

6. Diamonds are the hardest natural substance on earth ranking a 10 on the Mohs Scale of Hardness. The only thing that can scratch a diamond’s surface is another diamond. 

7. Diamonds have been valued and coveted for thousands of years by the likes of royalty and mythical beings. There is evidence that diamonds were being collected and traded in India as early as the fourth century BC. In the first century AD, the Roman naturalist Pliny is quoted as having said, “Diamond is the most valuable, not only of precious stones, but of all things in this world.” 

8. Ancient Hindus used diamonds in the eyes of devotional statues and believed that a diamond could protect its wearer from danger. 

9. Many ancient cultures believed that diamonds gave the wearer strength and courage during battle, and some kings wore diamonds on their armor as they rode into battle. 

10. During the Middle Ages diamonds were thought to have healing properties able to cure ailments ranging from fatigue to mental illness. 

11. The countries that are the main sources of diamonds have changed over time. India was the world’s original source of diamonds, beginning in the 1400s when Indian diamonds began to be sold in Venice and other European trade centers. Then in the 1700s India’s diamond supplies declined and Brazil became the world’s major source of diamonds, until the late 1800s when a huge diamond reserve was discovered in South Africa. Today, diamonds are mined in many parts of the world. Brilliant Earth goes above and beyond the current industry standards to offer Beyond Conflict Free™ Diamonds. 

12. The largest diamond ever discovered was called the Cullinan diamond, and weighed in at an amazing 3106 carats, or 1.33 pounds. Discovered in 1905 in South Africa, the mine’s owner and the South African leaders gave the diamond to King Edward. The Cullinan was eventually cut into nine large diamonds and 100 smaller ones, and the three largest of these are on display in the Tower of London as part of the crown jewels. 

13. The first known use of a diamond engagement ring took place in 1477, when Archduke Maxmillian of Austria gave Mary of Burgundy a gold ring featuring an M spelled out in diamonds. 

14. Lab diamonds have the same physical, chemical, and optical properties as mined diamonds. They are sustainable diamonds that have minimal environmental impact and require no new mining. Lab diamonds are created in a lab using advanced technologies that simulate the formation of a natural diamond beneath the earth’s crust. Discover Brilliant Earth’s collection of lab diamonds. 

15. The most mind-blowing diamond facts of all: Scientists have discovered a planet that they believe is composed mostly of carbon and is one-third pure diamond! Discovered in 2004, the planet orbits a nearby star in the Milky Way, and is named “55 Cancri e” (which, in our opinion, is not a sufficiently glamorous name for such an extraordinary planet). Perhaps even more amazing, scientists have discovered a star that is essentially a diamond of ten billion trillion carats. They named the star Lucy after the Beatles song “Lucy in the Sky with Diamonds.” (We approve.) 

While diamonds have clearly created a lot of joy for people throughout history, they have too often resulted in suffering in the communities where they are mined. At Brilliant Earth we believe diamonds shine brighter when they are sourced in an ethical, environmentally friendly way. We go above and beyond the current industry standards to offer Beyond Conflict Free™ Diamonds that have been selected for their ethical and environmentally responsible origins. Learn more about the issues surrounding diamond mining, and what we are doing to bring about change. 

Final Thoughts 

Did you already know these interesting facts about diamonds or were they news to you? Let us know your thoughts on Facebook or Twitter, or in the comments section! 

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Comments (47)

christa Says:
October 31st, 2019 at 7:32 am

I love you that is so pretty

Sam Grieger Says:
April 11th, 2019 at 1:05 pm

I love diamonds and hope you guys can keep teaching me about them. I also have been thinking about asking my husband to marry me and I want the best advice.

Britney Says:
February 7th, 2019 at 10:30 am


wow Says:
February 7th, 2019 at 10:28 am


wow Says:
February 7th, 2019 at 10:27 am

wow wow wow woooooooooooooooow wwwwwwwwwwwwwwoooooooooooooowwwwwwwwwwwwwww

wow Says:
February 7th, 2019 at 10:26 am


Molly Addams Says:
November 13th, 2018 at 7:31 pm

wow thanks a lot
I have a report to do on diamonds and most of this was news to me
thanks, guys!

hgfdcvbnji Says:
November 13th, 2018 at 1:20 pm

yes please diamonds yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes

June 26th, 2018 at 9:04 am


Kaden Kirby Says:
June 21st, 2018 at 6:45 am

most i knew but some were really news to me i am ten 10

Rick Says:
June 7th, 2018 at 3:08 am

Over rated

Tiffany Says:
June 5th, 2018 at 5:19 pm

I was needing to know if anything has been ordered in my name because I keep getting things in my email about this place and I have never ordered from here

Abitha Dye Says:
May 28th, 2018 at 10:13 am

I have a few diamonds i would like to sell.
old diamond bracelet.don’t want to send it by mail

teffera dare Says:
May 18th, 2018 at 2:32 am

you put really amazing information but more than this all God is great.

teffera dare Says:
May 18th, 2018 at 2:30 am

you put really amazing information but more than this all God is great

Leroy Says:
May 6th, 2018 at 4:56 am

Thanks for the facts but are there any about diamonds in South Africa

natalie gregory corl cookie champ thunder yah Says:
May 1st, 2018 at 12:42 pm

Love my life

natalie gregory Says:
May 1st, 2018 at 12:41 pm

THank you for every thing but i have school by by

natalie gregory Says:
May 1st, 2018 at 12:40 pm

I love this site thanks so much

elijah maddox Says:
March 2nd, 2018 at 7:55 am

thanks for the factes i needed them for a test

elijah maddox Says:
March 2nd, 2018 at 7:54 am

i did not know that diamonds are the brithstone of april

elijah maddox Says:
March 2nd, 2018 at 7:53 am

i did nit know that diamonds are the birthstone of april

james samples Says:
February 8th, 2018 at 9:52 am

thanks to your facts i got 100% on my test!

Hannah Says:
July 12th, 2017 at 7:00 pm

My favorite gem is diamond. I didn’t know there was so many wonderful facts about it.
I enjoyed it so much.

khanna jewels Says:
May 23rd, 2017 at 2:34 am

It’s great post, your work is more then i aspected.

Emily Says:
December 12th, 2016 at 4:14 pm

Thanks SO, SO, SO much I had to do a reports about rocks and diamonds were the perfect thing!!!!!!!!!!!!!!!!!!!!! Thanks!

danny Says:
May 26th, 2016 at 6:32 pm

This site is helpful. I am doing a project in Jewels and Jems so this is really helpful!

Polly Says:
April 21st, 2016 at 9:54 am

this helped!

Aniyah Harris Says:
March 21st, 2016 at 3:58 pm

Thanks for halping me with my school work, you guys are truly amazing I never knew any of this truly fascinating.

Luella Stoll Says:
January 24th, 2016 at 1:30 pm

Beautiful covers everything!

zero Says:
January 22nd, 2016 at 12:39 pm

thanks for helping me with my school work this website saved me!

Mara Says:
January 15th, 2016 at 9:05 am

Wow so amazingly amazing

December 13th, 2015 at 9:54 pm

Very interesting I have been looking for a diamond lately think I have found one

Doris Silvieus Says:
December 1st, 2015 at 5:40 pm

I enjoyed reading the facts you published about diamonds. Thank you

Whitney Says:
November 21st, 2015 at 2:28 am

I love all the facts but even 1000s of yrs ago people died for jewels and after reading about what digging for gold is doing to the earth and knowing people are still dieing for diamonds I could go without it all.. But deep inside I am waiting on that one curtain white gold diamond ring simple but not to simple.. Y’all do have beautiful jewlrey but more importantly than that to me y’all are trying to help what is hurting in this world! Bless y’all!!!

Kathleen Says:
November 14th, 2015 at 6:25 pm

Beautiful post…..I’m drunk on your collection, now dizzier than before. I get so lost in many of your pieces ….its the strangest and the most magical thing. Thank you.

Jane Says:
November 10th, 2015 at 10:14 am

Nice to read about the character and history of Nature’s gifts. As a GIA Graduate Gemologist, I enjoy these tidbits of information to include in my seminars! I did not know about the “diamond” star nor the planet! Thanks for giving me fun and interesting tidbits for my next seminar!

breann Says:
October 20th, 2015 at 11:29 am


Harsh Shah Says:
October 16th, 2015 at 1:48 am

Great post. Just one more fun fact, 1 carat of diamond equals to 0.20 gram. 😀

Kat Says:
September 25th, 2015 at 2:55 pm

I’m with Richard…
Diamonds while lovely are artificially inflated and in my opinion not worth the angst or price a poor fellow must go through to dazzle his girl.

james Says:
September 9th, 2015 at 5:08 am

nice! cool facts

Ivan Says:
March 18th, 2015 at 2:33 pm

Cancri is a great name for a star, it means cancer as in Cancer zodiac. -.- RUDE

Richard Says:
October 10th, 2014 at 8:16 am

You may have also mentioned:
1) if all diamonds sold worldwide were not artificially controlled by stockpiling, the cost to the consumer (based upon actual scarcity) would be a tiny fraction of the artificially inflated price found in retail today,
2) diamonds are awful investment,
3) diamond engagement rings were popularized in the 1930’s to generate business. Never before were they a “tradition”.

robert Says:
August 25th, 2014 at 10:30 am

You might have mentioned the many industrial uses of diamond or the scientific ones such as diamond anvils where the greatest man made pressures are achieved.

Espie Says:
June 12th, 2014 at 8:25 pm

Wonderful to know what’s all the meaning of diamond.

Chandler Says:
April 14th, 2014 at 5:41 pm


Joy Priem Says:
April 14th, 2014 at 5:59 am

It is so wonderful to know that there are ethical diamonds and other stones!
I enjoy designing with precious stones and one of the highlights of my many California trips was going to the GIA in Carlsbad!!!