Black Moissanite Engagement Rings: A Budget Black Diamond Alternative
Posted by YANIV SEGAL
Black moissanite gives you the black diamond look for less. It rates 9.25 on the Mohs scale, has an even, jet-black color and a glossy, slightly metallic shine. Our black styles offer a choice of Natural Black Diamond or Black Moissanite in the same design, so you can switch stones and compare price on one page. Here is how the two stones differ and how to decide.
Black moissanite vs black diamond: the key differences
From across a room, most people cannot tell a black moissanite from a black diamond. Up close, and over years of wear, there are real differences worth knowing.
| Feature | Black moissanite | Natural black diamond |
|---|---|---|
| Mohs hardness | 9.25 | 10 |
| Origin | Lab-grown | Mined, natural |
| Color | Uniform jet black, consistent stone to stone | Deep black; each stone has its own character |
| Surface look | High gloss with a slightly metallic shine | Glossy, slightly more "inky" polish |
| Internal structure | Clean and even, easy for the setter to work | Color comes from dense natural inclusions, so setting takes extra care |
| Price | The lower-cost option at the same size | Higher; the natural, rare choice |
| Best for | Bigger look on a set budget, very consistent color | Buyers who want a natural diamond and heirloom story |
Is a black moissanite engagement ring a good choice?
For most people, yes. At 9.25, black moissanite is harder than ruby and sapphire (both 9) and far harder than emerald or morganite (7.5–8). It resists scratches from everyday contact, and its color is part of the material, so it does not fade. Because it grows evenly in the lab, black moissanite has a consistent color and polish from one stone to the next, which makes it especially good for matching sets and for larger center stones.
The main reason to pass on it is personal: if a natural, mined diamond is important to you, choose a natural black diamond. All our stones, natural or lab-grown, are conflict-free.
Why some couples still choose a natural black diamond
A natural black diamond scores a full 10 on the Mohs scale and carries the story of a mined stone. Its black color comes from dense inclusions inside the crystal, which gives each stone a slightly different character. Those same inclusions mean the stone needs an experienced setter, and we take extra care at that stage. For a full price picture, see our guide to black diamond ring prices, and for the classic comparison, black vs white diamond engagement rings.
Same designs, swap the stone
You do not need to choose a different ring to choose a different black stone. On our product pages, black styles list both Natural Black Diamond and Black Moissanite in the stone menu. Pick one, and the price and the main photo update to that exact metal and stone variant. On our Janet No. 5 pear halo, for example, the price runs from $2,195 to $6,957 across its stone, size and metal options.
This makes the decision easy to test: set your metal and carat, toggle the stone, and compare the number. Choosing black moissanite can free up budget to move up a size or step up to 18K gold.
Black moissanite ring styles that work best
Pear halo. A black center inside a white diamond halo is the most striking contrast in jewelry. Our Janet pear halos are a favorite starting point.
Heart shape. A black heart is romantic with an edge. Noelle No. 39 starts from $2,860.
Emerald cut with hidden diamonds. Long step facets on a black stone create a sleek, architectural look; hidden diamonds add sparkle from the side.
Rose gold settings. Black and rose gold is one of the warmest contrasts you can wear. Our rose gold and black diamond guide covers the pairing in depth.
How to choose between black moissanite and black diamond
- Decide what matters most: natural origin (black diamond) or size and value (black moissanite).
- Choose your design first, then toggle the stone menu and compare the exact price.
- Check the main product photo, which switches to the exact metal and stone variant you select.
- Order our $199 Try It In Real Life replica of any ring design, sizes 4–13 including half sizes. You keep it, and the full $199 is credited on orders of $1,000 or more, with no expiry.
- Count on lifetime warranty, lifetime upgrade, free 60-day resizing and free worldwide shipping either way.
Shop the look
- Pear Shaped Halo - Janet No. 5, from $2,195. Natural black diamond or black moissanite in a classic pear halo.
- Pear Shaped Halo - Janet No. 6, from $2,195. A sister pear halo to compare metals and stones.
- Heart Shape Black Diamond - Noelle No. 39, from $2,860. A bold black heart.
- Emerald Cut With Hidden Round Diamonds - Sawyer No. 9, from $7,136. Sleek step-cut black with hidden sparkle.
Frequently asked questions
Is black moissanite a real diamond? No. Moissanite is a separate lab-grown gem (silicon carbide). It looks very similar to black diamond, rates 9.25 on the Mohs scale, and costs less at the same size.
Can you tell black moissanite from black diamond? At normal viewing distance, rarely. Up close, black moissanite tends to show a slightly more metallic gloss and a more uniform color.
Is black moissanite durable for an engagement ring? Yes. At 9.25 it is harder than ruby and sapphire and suits daily wear.
Does black moissanite fade or change color? No. The color is part of the stone and does not fade with wear or cleaning.
Can I switch the same ring between black diamond and black moissanite? Yes. Our black styles list both stones in the stone menu, and the price and photo update to your selection.
