Loose Lab Grown Diamonds UK | Wholesale Lab Diamonds for Jewellers
Loose Lab Grown Diamonds
for UK Jewellers & Designers
Source loose lab grown diamonds directly from Maitri Diamonds, a manufacturer supplying jewellers, designers and workshops across the UK.
- Round & fancy shapes
- 0.10-30ct
- D-H colour
- VS2-SI1 clarity
- IGI certified
- Fast UK delivery
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What Are Loose Lab Grown Diamonds?
Loose lab grown diamonds, or loose diamonds, are individual stones that are not set into jewellery, giving jewellers, designers and buyers full flexibility in how they are used. These lab created diamonds are grown using advanced technology through a controlled process that replicates natural diamond formation, resulting in stones with the same physical, chemical and optical properties as natural diamonds, and the same authenticity in appearance and performance.
Choosing loose lab diamonds allows you to select the exact shape, size, colour and clarity required before setting. This makes them ideal for bespoke jewellery, engagement rings and trade supply, where precision and consistency are essential.
Compared to mined diamonds formed beneath the earth, lab grown diamonds differ only in origin. They offer significantly better value while maintaining the same brilliance and durability, and provide a more environmentally friendly, sustainable and ethical alternative. This makes them an increasingly popular choice across the UK jewellery market.
Lab Grown Diamonds
Same physical & optical properties as natural diamonds
Better Value
More size & quality for your budget
Full Flexibility
Choose exact specifications before setting
Available Loose Lab Diamond Shapes
Our loose lab grown diamonds are available in all major shapes, including round, oval, emerald, cushion and more. Each stone is precision-cut for maximum brilliance, making them ideal for engagement rings, bespoke jewellery and trade supply.
Round
Offers maximum brilliance and remains the most popular choice.
Oval
Creates an elegant elongated look, popular in modern engagement rings.
Cushion
Combines soft edges with strong brilliance.
Emerald
Features step-cut facets for a clean, sophisticated look.
Radiant
Combines brilliance with bold, modern edges.
Pear
Offers a distinctive teardrop silhouette.
Lab Grown Diamond Sizes, Carats & Specifications
Precision-led supply across all key specifications, including carat weight, built for jewellers, designers and trade buyers who need consistency, scalability and quality.
Carat Sizes
From calibrated melee to large centre stones, our inventory covers full size ranges including 1 carat, 2 carat and 3 carat stones for engagement and bespoke work.
Colour Range
D to H colour diamonds delivering a bright white appearance suitable for both high-end jewellery and commercial production, with H clarity sometimes mistakenly used by buyers when referring to the H end of the colour range.
Clarity Selection
VS to SI clarity options balancing visual quality and pricing efficiency for different customer segments.
Cut & Finish
Excellent and very good cut grades ensuring strong brilliance, symmetry and consistency across orders, with report-level finish details such as a medium girdle and length-to-width ratio also available for review.
Whether sourcing a single 1 carat lab grown diamond or building calibrated parcels, Maitri provides consistent, repeatable supply tailored to UK jewellers and workshops.
Lab Grown Diamond Pricing & Wholesale Supply
Built for UK jewellers and trade buyers: combining direct pricing, guaranteed quality, flexible supply and consistent inventory from a global manufacturer.
Direct From Source
Diamonds supplied directly from our manufacturing operations, reducing layers and delivering stronger trade pricing.
Built for Trade Flexibility
Source single stones for bespoke pieces or build parcels for production, without restrictive minimums.
Reliable Wholesale Supply
Consistent inventory, calibrated stones and matched pairs to support repeat ordering and scaling businesses.
Pricing Built for UK Buyers
Structured around carat, cut, colour and clarity, with regular stock lists and updates to support margin planning and sourcing decisions.
With growing UK operations, Maitri Diamonds provides responsive communication, fast delivery and a supply model tailored specifically for local jewellers and workshops.
Explore our full range of loose lab grown diamonds, or buy lab grown diamonds with flexible ordering. For larger requirements, Maitri also supports wholesale lab grown diamonds and acts as a trusted lab grown diamond supplier for UK jewellers and designers.
Request Trade Pricing & Stock List
Access competitive UK pricing, review our available collection and get tailored sourcing support for your requirements before any purchase.
Get PricesFrequently Asked Questions
Loose Lab Grown Diamonds
What are loose lab grown diamonds?
Loose lab grown diamonds are individual diamonds that are not set into jewellery. They are commonly purchased by jewellers, designers and customers who want to create bespoke pieces or select a specific stone before setting.
Are lab grown diamonds real diamonds?
Yes, lab grown diamonds are real diamonds with the same physical, chemical and optical properties as mined diamonds. The only difference is that they are created in controlled laboratory environments rather than formed naturally underground.
Are lab grown diamonds cheaper than natural diamonds?
Lab grown diamonds are typically more affordable than natural diamonds of the same size and quality. This makes them a popular choice for buyers looking for larger stones or better specifications at a more accessible price point.
Do lab grown diamonds come with certification?
Yes, most loose lab grown diamonds are certified by recognised laboratories such as IGI or GIA. Certification provides details on carat, cut, colour and clarity, helping buyers compare certified diamonds while ensuring transparency and confidence when purchasing.
Can I buy loose lab grown diamonds in the UK?
Yes, loose lab grown diamonds are widely available in the UK through specialist suppliers. Maitri Diamonds supplies both trade customers and any person seeking certified stones with fast UK delivery, and buyers can visit to view stones in person by appointment where that service is offered.
What sizes are available in lab grown diamonds?
Lab grown diamonds are available in a wide range of sizes, typically from 0.10 carat to over 10 carats. Popular choices include 1 carat and 2 carat stones for an engagement ring or centre ring design, depending on the buyer’s preferred style.
Still have questions or need pricing?
Request our latest stock list and trade pricing for loose lab grown diamonds in the UK, and our team can help you search current stock to identify the perfect diamond for your requirements.
Get PricesCertified Lab Grown Diamonds
Our loose lab grown diamonds are available as certified diamonds with certification from IGI and GIA. Certification ensures accurate grading, traceability and confidence, giving buyers every detail needed to choose the right stone, whether for an engagement ring or handcrafted jewellery.
