5 Myths About Moissanite Engagement Rings, Busted
Moissanite gets a bad rap from people who haven’t seen one up close in a while. Most of what you’ll hear at a dinner party is either twenty years out of date or was never true in the first place. Here’s what’s actually going on.
Myth 1: Moissanite Is Just a Fake Diamond
It isn’t pretending to be anything. Moissanite is silicon carbide, a gemstone in its own right, first identified by French chemist Henri Moissan in 1893 while he was studying fragments from a meteor crater in Arizona. Natural moissanite is so rare that every stone you’ll find in a jewellery store today is lab-created.
Calling it fake is a bit like calling a sapphire a fake ruby. Moissanite is a gemstone with more fire than a diamond, and it deserves to be judged on its own terms.
Myth 2: It’ll Go Cloudy After a Few Years
This one comes up constantly, and it’s simply wrong. Moissanite’s structure doesn’t change over time. It won’t yellow or fog.
What does happen is that any stone collects hand cream and the general grime of daily life. A diamond does exactly the same thing. A soak in warm, soapy water and a gentle scrub with a soft toothbrush will have it looking the way it did on day one.
Myth 3: It’s Too Soft for an Everyday Engagement Ring
Moissanite rates 9.25 on the Mohs hardness scale. Diamond sits at 10, sapphire at 9. That makes moissanite harder than almost every other gemstone used in engagement rings, and plenty tough enough for gym sessions and the occasional slammed car door.
Is it scratch-proof? No, and Cullen Jewellery is refreshingly honest about that in its own moissanite guidance. Enough force, or a run-in with something harder like a diamond, can leave a mark. Under normal conditions, though, it handles daily life far better than softer stones, which is why the brand’s advice focuses on sensible choices rather than wrapping your ring in cotton wool. Platinum is the harder-wearing metal if you’re tough on your hands, since white gold’s finish can wear over time. A quick 15-minute soak in soapy water and a soft toothbrush keeps the stone bright between yearly professional cleans.
The quality floor matters just as much. Every stone in the Cullen moissanite collection is graded D to F for colour, Excellent for cut and VVS clarity or higher, and Cullen offers complimentary ultrasonic cleaning for the life of the ring. That takes most of the upkeep off your plate. Whoever you buy from, it’s worth checking the setting yourself too. Count the claws, look at the ring side-on, and run it lightly over a knitted sleeve to see whether it snags.
Myth 4: Moissanite Always Has a Yellow or Green Tint
Fair enough if you remember the early stones. The first commercial moissanite arrived in the late 1990s and often carried a noticeable warm or greenish cast, especially in bigger sizes.
Production has come a long way since. Today’s best moissanite is graded colourless, in the same D to F range used for top-tier diamonds. If someone insists it looks yellow, ask when they last actually saw one.
Myth 5: Everyone Will Be Able to Tell
Here’s the honest answer. Moissanite does look slightly different from a diamond, just not in the way most people expect. It has a higher refractive index (around 2.65 versus diamond’s 2.42) and more than double the dispersion, so it throws more rainbow flashes, particularly in sunlight.
Most people won’t clock that as “not a diamond.” They’ll just notice your ring sparkles a lot. Even some basic handheld diamond testers can’t separate the two, because both conduct heat in a similar way.
Where a Moissanite Ring Makes the Most Sense
For couples who want a big centre stone without a big loan, the maths is hard to argue with. A moissanite the size of a 2 carat diamond typically costs a small fraction of the mined equivalent, and because it’s created above ground, it’s a more sustainable choice as well.
Try this before you decide. Look at a moissanite and a diamond side by side in daylight, with the price tags hidden. If you can’t confidently pick which is which, you’ve just found a few thousand dollars you didn’t need to spend.
