Loose Lab Grown Diamonds, Certified & Ready to Set
Buy loose lab grown diamonds direct from the source. As a vertically integrated lab grown diamond supplier, Maitri grows, cuts, and certifies every stone in-house, so you get IGI certified diamonds with full traceability, at a price mined stones simply can't match.
- ✓Real diamonds with the same crystal structure, hardness & fire
- ✓Certified by IGI on every stone
- ✓100% traceable, seed to polished diamond
- ✓Climate neutral CVD production
- ✓Conflict-free, with no mining-related harm
- ✓More diamond for your budget, carat for carat
Loose lab grown diamonds are unmounted stones created in a controlled lab setting, sharing the same physical, chemical, and optical properties as mined diamonds. They carry a guaranteed ethical origin, avoid the environmental impact of mining, and arrive fully certified using the same 4Cs grading as any natural gem.
Choosing between luxury and ethics used to mean compromise. Traditional diamond supply chains pass through multiple centers, adding opacity, so buyers often face incomplete documentation or unclear provenance.
Maitri eliminates that tension. Every diamond is grown using chemical vapor deposition in our own facilities, tracked from seed crystal to finished stone, and certified by an independent grading laboratory, so every purchase comes with documented proof of origin, not just a promise.
The result: you select a diamond that meets your exact specifications for cut, color, clarity, and carat weight, knowing its origin is verified and its footprint accounted for. No tradeoff between conscience and quality.
Five concrete reasons separate our stones from alternatives in the diamond world:
Our reactors run on verified renewable energy sources. Lab-grown diamonds reduce environmental impact compared to mined diamonds, and our process is 100% climate neutral under independent third-party verification.
Each stone is tracked from laboratory creation through cutting, grading, and delivery. Blockchain-based records replace the paper trails common in the broader diamond industry.
CVD diamonds have the same crystal lattice, hardness (10 on the Mohs scale), refractive index, and thermal conductivity as natural diamonds. A gem lab equipped with photoluminescence spectroscopy can confirm lab origin; the naked eye cannot.
Every diamond receives a diamond grading report from IGI, applying reliable and consistent grading across all 4Cs: Cut, Color, Clarity, and Carat.
Mined diamonds can cause ecological damage during extraction, including habitat disruption, water contamination, and displacement of communities. Lab grown diamonds avoid all of these by design.
Chemical vapor deposition grows diamond crystal inside a vacuum chamber. Methane and hydrogen gases are ionized by microwave plasma into carbon atoms, which settle onto a seed crystal layer by layer over three to four weeks. The result is a precisely controlled, type IIa crystal with minimal nitrogen impurities.
Once removed from the reactor, trained cutters plan faceting to maximize light performance, typically losing close to 50% of the rough crystal's weight in the process. Each stone is evaluated for depth, table proportions, and polish before submission to an independent laboratory, then laser-inscribed with its origin along the girdle.
Selecting a diamond starts with a consultation, matching your specifications for shape, clarity, color, and carat to available stones. Every diamond ships with its full grading report, traceability documentation, and a gemstone guarantee, with insured, tracked delivery worldwide.
Most producers in the lab grown segment outsource cutting, grading, or distribution to third parties. Maitri controls the entire process in-house, from growth through final delivery, removing intermediaries and maintaining oversight at every stage.
Our exclusive focus on CVD technology produces stones in the near-colorless range (D through G) with clarity concentrated in VVS2 to VS1. Unlike HPHT-grown stones, which can carry metallic flux inclusions from the growth catalyst, CVD produces cleaner crystals with fewer grade-setting characteristics.
Climate neutral certification is verified annually by an independent auditor, covering energy use per carat, water usage, and waste handling. It's a documented audit with published methodology, not a marketing label.
- Outsources cutting, grading submission, or distribution to third parties
- HPHT stones can carry metallic flux inclusions from catalyst metals
- Incomplete or vague origin documentation
- Controls growth through final delivery, in-house, start to finish
- Exclusive CVD focus for cleaner crystals, fewer clarity characteristics
- Full traceability, verified by independent grading laboratories
Wholesale lab grown diamonds partners who source from Maitri receive stones with dual documentation: an IGI grading certificate and a sustainability traceability record that follows the stone from reactor to delivery.
Professional gemstone identification confirms each diamond's lab origin through photoluminescence spectroscopy and growth pattern analysis, and the final certificate records cut, color, clarity, carat weight, fluorescence, and growth method.
Jewelry designers working with our stones produce engagement rings, studs, and wedding rings that meet fine jewelry standards, and retailers tell us documented traceability converts browsers into buyers by answering questions before they arise.
Who want full provenance transparency, not just a promise. Ethical sourcing is a core requirement, and these buyers choose real diamonds with documented proof of responsible production.
Who need wholesale lab grown diamonds in consistent grades and shapes for production runs, with predictable supply across carat weight thresholds for planning and inventory.
Aligned with their values. Lab-grown diamonds cost less than equivalent mined stones, so the budget stretches further for a bigger stone, cut to the same brilliance and precision standards.
Every shape below is grown, cut, and certified in-house, with full documentation for the exact stone you receive.
Ideal cut round and princess cuts from 0.50 ct through 5.00 ct, in D through J color and FL through VS2 clarity. Round remains the most requested shape for engagement rings, prized for the sparkle a well-proportioned brilliant throws across a room. G or H stones face up white in most settings, without the premium of a D or E grade.
Emerald, oval, marquise, and pear shapes for custom jewelry and statement pieces, each emphasizing different optical properties: emerald cuts showcase clarity through broad, open facets, while ovals and pears maximize perceived size relative to carat weight. Our team advises on inclusion mapping so a stone's clarity grade always matches how it looks in person.
Volume pricing for manufacturers and retail partners who need consistent specifications across orders, in every shape, color, and clarity grade, with documentation formatted for international trade. Larger stones undergo additional inspection to confirm each one matches its certificate.
How do CVD lab grown diamonds compare to mined diamonds?
Lab-grown diamonds share the same crystal structure, hardness, refractive index, and thermal conductivity as natural diamonds, and are graded to the same standards. Only lab instruments analyzing growth patterns and photoluminescence spectra can tell them apart from mined stones. One thing worth knowing: lab-grown diamonds don't yet carry the same resale value as natural ones, which is worth factoring into your decision.
What certifications do Maitri diamonds receive?
Each stone receives a certificate from IGI, the International Gemological Institute, documenting cut, color, clarity, and carat weight. A laser inscription on the girdle links the physical stone to its digital certificate, and a light performance report measures brilliance, fire, and scintillation, giving you objective data rather than a subjective opinion.
How does pricing compare to traditional diamonds?
Lab-grown diamonds cost less than comparable mined stones because lab production skips mining infrastructure and shortens the supply chain. On the measures jewelers use to judge value, cut, color, and clarity, lab grown stones grade identically to their mined equivalents. If verified ethical sourcing matters more to you than resale positioning, lab grown diamonds deliver on both.
Explore our inventory of loose diamonds across every shape, size, and grade. For custom or wholesale requirements, our team will consult directly to match stones to your exact specifications.
Contact us to discuss your needs and review documentation for any stone in our collection. Every Maitri diamond ships with full traceability records, independent grading certification, and climate neutral production.
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