If you are shopping for a sparkling ring or pair of studs in India this year, you have almost certainly hit the same fork in the road: lab-grown diamond or moissanite? They look similar in a photo, but they are different stones at very different price points. Here is the honest, jargon-free breakdown.
What they actually are
A lab-grown diamond is chemically, physically and optically identical to a mined diamond. The only difference is origin: it is created in a few weeks in a controlled lab rather than over billions of years underground. Above 0.30 ct it is typically certified by IGI or SGL, exactly like a natural diamond.
Moissanite is a lab-created gemstone made of silicon carbide. It is beautiful and extremely durable, but it is not a diamond — and reputable sellers never market it as one. It carries its own GRA certificate of authenticity.
Side-by-side comparison
| Factor | Lab-Grown Diamond | Moissanite |
|---|---|---|
| Material | Pure carbon (real diamond) | Silicon carbide |
| Hardness (Mohs) | 10 (hardest) | 9.25 (excellent) |
| Sparkle | Classic white & grey brilliance | More fiery, rainbow flashes |
| Certification | IGI / SGL (graded on the 4Cs) | GRA certificate of authenticity |
| Price (1 ct equivalent) | From around ₹35,000+ | From around ₹8,000–₹25,000 |
| Best for | Engagement & heirloom pieces | Size-maximising & everyday sparkle |
Sparkle: the visible difference
Under bright light, moissanite throws noticeably more fire — those colourful rainbow flashes. Some people love it; others find a lab-grown diamond's whiter, more restrained brilliance reads as more “diamond.” In normal indoor lighting most people cannot tell them apart at a glance.
Price: where the gap is huge
This is usually the deciding factor. In India in 2026, moissanite typically costs 70–85% less than a comparable lab-grown diamond. Lab-grown diamond prices themselves have fallen 15–20% versus 2023, making a certified diamond more attainable than ever — but moissanite still wins on pure size-per-rupee.
Which should you choose?
Choose a lab-grown diamond if: it is an engagement or milestone piece, you value diamond certification and resale identity, and you prefer classic white brilliance.
Choose moissanite if: you want maximum carat size for your budget, you love extra fire, or you want statement everyday jewellery without the diamond price tag.
At GemHub we craft both, factory-direct, in 925 silver, gold vermeil and solid 14k/18k gold.
Shop Lab-Grown DiamondsShop Moissanite Rings
Frequently asked questions
Is a lab-grown diamond a real diamond?
Yes. A lab-grown diamond is a real diamond — identical in chemical, physical and optical properties to a mined diamond. It is graded on the same 4Cs and certified by IGI or SGL.
Is moissanite a fake diamond?
No. Moissanite is its own gemstone (silicon carbide), not a fake or imitation diamond. It is a genuine, durable stone with its own GRA certificate — it simply is not a diamond.
Which is cheaper in India, moissanite or lab-grown diamond?
Moissanite is significantly cheaper — typically 70–85% less than a comparable lab-grown diamond in India in 2026.
Can people tell the difference between them?
In everyday lighting, most people cannot tell at a glance. On close inspection moissanite shows more rainbow fire, while a lab-grown diamond shows whiter brilliance.
