Spinel and Ruby:
Gemquiz

Medium

Post difficulty
4 min

Post Length
Gemquiz

Gem-related Field
We've recently received comments and messages on social media about some of our spinels resembling rubies, so we thought it would be fun to test your ability to distinguish between the two gemstones with a quick quiz!

Let's see how things go!
Gemology
Ruby or Spinel

Gemquiz
Ruby Or Spinel?
Because their color is so clear and similar to that of rubies, some spinels are more difficult to distinguish from rubies. Ready? Go!
Take the quiz
This gemstones is a spinel
Guess again!
Correct! It's a 2.00 cts ruby
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This gemstone is a ruby
Correct. A beautiful 4.02 cts Mozambique heated ruby.
Guess again!
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This gemstone is a ruby
Guess again!
Correct, it's a 1.46 cts red spinel
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This gemstone is a ruby
Correct! 2.01 cts ruby
Guess again
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This gemstone is a spinel
Correct, it's a 2.48 cts spinel
Guess again!
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This gemstone is a spinel
Correct, it's a 4.97 cts spinel
Guess again!
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This gemstone is a spinel
Guess again!
Correct. It's a rare unheated ruby 4.03 cts from Mozambique
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This gemstone is a ruby
Guess again!
Correct. It's a 2.26 cts spinel
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This set is made of spinels
Correct. It's a a full set comprised of 1.85 + 2.18 cts spinels and spinel pair
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This is a spinel pair
Guess again!
Correct, it is a 5.05 + 5.04 cts ruby pair
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This is a ruby pair
Correct, it's a 0.97 + 1.04 cts ruby pair
Guess again!
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This gemstone is a spinel
Correct. It's a 2.26 cts spinel
Guess again!
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This gemstone is a ruby
Correct, it's a 1.93 heated ruby
Guess again!
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This gemstone is a spinel
Guess again!
Correct, it's a 2.05 heated ruby
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This gemstone is a spinel
Correct, it's a 3.55 cts spinel
Guess again!
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This gemstone is a ruby
Guess again!
Correct, it's a 3.17 cts red spinel
Next
Check
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This gemstone is a ruby
Correct, it's a 3.02 cts unheated ruby
Guess again!
Next
Check
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This is a ruby pair
Correct, it's a 5.02 + 5.03 cts heated ruby pair
Guess again!
Next
Check
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This gemstone is a spinel
Guess again!
Correct, it's a 2.93 heated ruby
Next
Check
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This is a spinel pair
Correct, it's a 1.74 cts spinel pair
Guess again!
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This gemstone is a spinel
Correct, it's a 4.05 cts red spinel
Guess again!
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This gemstone is a spinel
Correct, it's a 1.72 cts red spinel
Guess again!
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This gemstone is a ruby
Guess again!
Correct, this is a 1.98 cts red spinel
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This gemstone is a spinel
Correct, it's a 3.17 cts spinel
Guess again!
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This gemstone is a ruby
Correct, it's a 2.65 cts from Madagascar
Guess again!
Guess again!
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This gemstone is a spinel
Guess again!
Guess again!
Correct, it's a rubellite!
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This gemstone is a spinel
Guess again
Correct, it's a 3.03 cts unheated ruby
Aw, come on!
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This gemstone is a spinel
Guess again!
Correct, it's a 2.63 unheated ruby
Which stone did you think it was?
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This gemstone is a ruby
Correct, it's a 3.03 unheated ruby
Guess again!
Guess again!
Next
Check
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And for the last one, is this gem a spinel?
Correct, and it's one of my favorite! It's a 1.98 cts red spinel
Come on! You had one last chance to get it perfect! :D
This is quite frustrating, isn't it?
Next
Check
Show results
Let's get back to the basics.
You should go back to your books and look for the first things to notice in these two gemstones so you can tell them apart in a second. It's not just about the color! We welcome you to read our posts on the topic in our blog section.
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Keep up the good work!
Because their color is so clear and similar to that of rubies, some spinels are more difficult to distinguish from rubies. A little more effort will suffice :)
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You are a true gemologist!
Gemstones have no secrets for you, and it's the best we could hope for :D
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We'd love to hear your thoughts on this quiz! I'll probably make more quizzes in the future because they're a lot of fun to make. Do you have any ideas for the next one? Any suggestion is welcome!

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Benjamin Poudevigne
Social Media Manager at GemMatrix
With over ten years of marketing experience, I finally decided to settle down in Bangkok to work in an area that I have always been interested in: the gemstones industry. I'm still learning how the market works on a daily basis, and I enjoy sharing my experience with those who are interested in learning more about gems in general.