I try to keep my blog topics timely, inspired by the come-hither headlines of my news feed, shouting, Click me! or No, click ME! But it’s not often – once in a blue moon, in fact – where I talk about what happened last week and what happens next week inside of the same topic. The calendar positions us perfectly today to do just that. So let’s talk rubies.
My first introduction to the four “precious gems” was probably when I started going to the movies. Diamonds Are Forever was as much about the title jewels as it was about James Bond. Romancing the Stone – the first movie my wife and I ever saw together – was a swashbuckling pursuit of a giant emerald in South America. The “Heart of the Ocean” pendant from Titanic was the biggest sapphire I’d ever seen (until someone reminded me it was actually a blue diamond). And rubies, of course, became something magical through Dorothy’s red slippers in The Wizard of Oz.

Last week, the largest ruby ever mined – 55.22 carats – came to the auction block at Sotheby’s. For a cool $35 million it could’ve been yours. Named the Estrela de Fura – Portuguese for the Mozambique mine where it was discovered – the “Star of Fura” was twice as big in its native form a year ago, then cut down and polished to the glistening red rock you see here.
Rubies aren’t made to be broken but world records are, and this one was shattered. The previous largest ruby, known as The Sunrise, was “only” half as big (25.59 carats). To me, The Sunrise looks about as big as a red M&M. The Estrela de Fura looks like a strawberry. The most expensive strawberry in the world, that is.

If rubies are your thing, keep an eye on Mozambique. Ruby mining is relatively new to this country in the south of Africa, with the first significant discovery of the gems made in 2009. Less than fifteen years later we have the record-setting Estrela de Fura. Surely an even bigger ruby can’t be far behind.
Moving on. This week begins the month of July (and the second half of 2023) which means we have several reasons to see red. America’s Independence Day includes a lot of red, whether the flag or the fireworks. Sunbathers will see the color on their skin more often than they’d care to. Strawberries are ripe and in abundance. The month’s zodiac sign is cancer (the crab) and crabs are often red. And July’s birthstone is, of course, the ruby.
Now’s a good time for some ruby trivia, the fun facts you most likely don’t already know. The first one is my favorite for your next social gathering:
- Rubies are actually sapphires by definition (all mined from the same crystalline form of aluminum oxide known as “corundum”). In other words, rubies are simply rarer, red-colored sapphires.

Don’t touch! - Rubies have symbolized power and protection throughout human history, as with decorated warriors in battle (or slippered Dorothy in the Land of Oz).

“The Hope” - You’ve heard of the (blue) Hope Diamond but how about the (red) Hope Ruby? The Hope is 32 carats, cradled in a ring and highlighted with just a few diamonds. Same name, yes, but different gem, color, and setting.
- The most desirable (read: costly) rubies have a hint of blue in them, which contributes to the rich deep color known as “pigeon’s blood” red.
- A 10-carat ruby is typically more expensive than a comparably sized diamond. Why? Supply (and demand). You just don’t find as many large rubies as you do diamonds.

So there you have it: everything you need to know about rubies just in time for the month we celebrate them. I’d be remiss (translation: “in trouble”) if I didn’t mention my wife’s birthday, which is next week as well. Yes, her birthstone is the ruby, and “darn it all” I had the perfect gift idea if I’d only known about last week’s Estrela de Fura auction sooner. These opportunities come along but once in a red moon. Sorry honey, I need to be a little more on the ball. Guess I’ll hang onto our $35M for next year’s birthday present.
Some content sourced from the CNN.com article, “Largest ruby ever to come to auction sells…”, and Wikipedia, “the free encyclopedia”.