Lab Grown Diamond Engagement Rings
A lab grown diamond is a real diamond. Not a simulant, not an imitation. The same pure carbon structure, the same hardness of 10 on the Mohs scale, the same cut and clarity grading from IGI or GIA. The only difference is that it grew in a controlled laboratory over a few weeks rather than underground over billions of years.
What that means for you, practically: a lab grown diamond costs 40 to 60% less than a mined stone of equal quality. A 1-carat F color, VS1 clarity, excellent cut stone that would cost $5,000 mined runs between $800 and $1,500 here. That gap lets you go bigger, go better quality, or simply keep more of your budget for everything else.
Every lab grown diamond in our collection is IGI-certified, graded on cut, color, clarity, and carat weight. The stone arrives with a certificate, just as a mined diamond would. A jeweler examining it under a loupe cannot tell it apart from a mined stone. Only specialist spectroscopy equipment used in gemological labs detects the difference.
Our lab grown diamond engagement rings are available in every major cut: round brilliant, oval, cushion, emerald, princess, pear, marquise, and heart. Settings range from classic four-prong solitaires to halo designs, split shanks, pavé bands, three-stone rings, and twisted shanks.
Moissanite Engagement Rings
Moissanite is not a diamond. It is its own gemstone entirely, composed of silicon carbide rather than carbon. French scientist Henri Moissan discovered it in 1893 inside a meteorite crater in Arizona. Natural moissanite is so rare it has never been found in a size suitable for jewelry, so all moissanite used in rings today is lab-created.
The reason people choose moissanite for an engagement ring comes down to two things: its sparkle and its price.
Moissanite has a higher refractive index than diamond, 2.65 versus 2.42. That means it bends light more aggressively, producing bold rainbow flashes that some people find absolutely stunning and others find too intense. Under restaurant lighting or candlelight, a moissanite ring is dramatic. In direct sunlight, the rainbow effect is unmistakable. Whether you love that or prefer a diamond's crisper, whiter brilliance is genuinely a personal choice.
On price, a 1-carat moissanite typically costs $500 to $800. An equivalent lab grown diamond runs $800 to $1,500. The gap has narrowed significantly in recent years as lab diamond production has scaled up, but moissanite remains the most affordable option for a large, brilliant center stone.
In terms of durability, moissanite sits at 9.25 on the Mohs scale. That is harder than sapphire, harder than every other gemstone used in jewelry except diamond. It holds up perfectly well for a ring worn every day.
Gemstone Engagement Rings
Colored gemstone engagement rings have existed for centuries. Princess Diana's sapphire ring, passed to Princess Catherine, is the most famous example. What they offer is something neither diamond nor moissanite can: color, character, and a genuinely individual look.
Blue sapphire is the most popular choice, partly because of that royal association and partly because corundum (sapphire and ruby) sits at a 9 on the Mohs scale, making it nearly as hard as diamond. It is a practical stone for daily wear, not just a pretty one.
Other strong options include emerald (vivid green, 7.5 to 8 on Mohs), morganite (soft peach-pink, 7.5 to 8), pink sapphire, and aquamarine. For any ring intended to be worn every day, we recommend sticking to stones rated 8 or above on the Mohs scale.
The other advantage of gemstone rings is size. For the same budget, you can choose a much larger colored stone than a diamond or moissanite equivalent. A 3-carat sapphire costs a fraction of what a 3-carat diamond would.
How to Choose an Engagement Ring for your Special Day?
Most people start with the stone type, but the better starting point is the person who will wear it.
If they care about having a diamond, specifically, then moissanite is off the table regardless of how similar it looks. Go with a lab grown diamond, choose a cut you both love, and let the budget determine carat size rather than the other way around.
If budget is the primary constraint, moissanite gives you significantly more stone for the money. A 2-carat moissanite at $600 to $900 is a genuinely striking ring. It is not a compromise; it is a different choice with a different kind of brilliance.
If neither of you is attached to a colorless stone, a sapphire or emerald ring is worth serious consideration. They are distinctive, often more affordable than people expect, and they photograph beautifully.
On cut, a few things are worth knowing. Oval, marquise, and pear cuts appear noticeably larger than round stones of the same carat weight because they have more surface area. If visual size matters, those three cuts give you the most impact per dollar. Round brilliant is still the most popular for a reason: it produces the most light return of any cut, and it suits every hand shape.
On settings, a bezel setting (where metal wraps around the entire perimeter of the stone) offers the best protection for an active lifestyle. A prong solitaire is the most classic option. A halo adds roughly half a carat of visual weight without the cost of a larger center stone. Pavé bands add sparkle along the shank and pair well with most center stones.
On metal, white gold and platinum are the standard pairing for colorless stones because they do not cast a warm tint on the diamond. Yellow and rose gold work particularly well with moissanite and with colored gemstones. Platinum is the most durable metal choice and never needs re-plating, unlike white gold.
The 4 Cs for Lab Grown Diamonds
Lab grown diamonds are graded exactly the same way as mined diamonds. Here is what each grade means in practice.
Cut is the most important of the four. A well-cut diamond reflects light brilliantly. A poorly cut diamond looks dull regardless of how high its color or clarity grades are. Always choose Excellent or Very Good cut. Never compromise on this one.
Color runs from D (completely colorless) down to Z (visibly yellow). For most budgets, G or H color is the sweet spot: near-colorless to the naked eye and significantly less expensive than D-F stones. In yellow or rose gold settings, you can go as low as I or J without the warmth being noticeable.
Clarity measures inclusions inside the stone. FL (flawless) and VVS grades are beautiful but represent diminishing returns at price. VS1 and VS2 are the practical sweet spot: no inclusions visible to the naked eye, and the price is reasonable. SI1 can work too if the certificate shows the inclusions are not near the center of the stone.
Carat is weight, not physical size. An oval stone at 1 carat has a larger face-up surface than a round stone at 1 carat. A marquise at 1 carat appears larger still. This matters because you can choose a cut that appears larger without paying for a higher carat weight.
Why Choose Real Canary for your Engagement Ring?
We cut and set every ring in Surat, India, where the diamond polishing industry has been the world's best for generations. Going direct from that source means you are not paying for a retail chain or a brand markup. You are paying for the ring.
All lab grown diamonds are IGI-certified. Returns are free for 120 days. Shipping is free on orders over $49. And if the ring you want does not exist in the collection, our custom design service will make it.
