6mm x 4mm Blue Pear Lab Grown Diamond – Calibrated Loose Diamond
Precision-calibrated 6mm x 4mm Blue Pear lab grown diamonds selected for consistency in size, colour, cut and overall quality. Featuring a striking Vivid Blue colour and VVS clarity, these loose diamonds are ideal for engagement rings, coloured side stones, earrings, jewellery repairs and bespoke designs.
Diamond Specifications
- Size: 6mm x 4mm
- Approx. Carat Weight: 0.33ct per diamond
- Shape: Pear
- Diamond Type: Lab Grown
- Colour: Vivid Blue
- Clarity: VVS
- Cut: Excellent
- Calibration: +0.04mm
Carat weight is approximate and may vary slightly between individual diamonds.
Precision-Calibrated Blue Pear Diamonds
Our 6mm x 4mm Blue Pear lab grown diamonds are precision calibrated to a +0.04mm tolerance, providing consistent sizing for jewellery making, matching stones, replacement diamonds and bespoke settings. Each diamond is selected for its overall appearance, proportions and colour consistency.
Pear Cut & Brilliance
The Pear Cut combines brilliant-style faceting with an elegant teardrop outline, featuring a rounded end that tapers to a distinctive point. Its elongated shape creates beautiful sparkle while showcasing the diamond's blue colour, making it a distinctive choice for engagement rings, earrings, pendants and bespoke jewellery.
Vivid Blue Colour & VVS Clarity
These lab grown diamonds feature a Vivid Blue colour, offering a striking alternative to traditional colourless diamonds. Their distinctive blue appearance makes them particularly suitable for statement jewellery, coloured accents and bespoke designs.
With VVS (Very, Very Slightly Included) clarity, inclusions are extremely difficult for a skilled grader to see under 10× magnification, providing a high level of clarity alongside their vibrant colour.
Jewellery Making & Repairs
6mm x 4mm Blue Pear lab grown diamonds are suitable for a wide range of jewellery applications, including engagement rings, side stones, earrings, matching pairs, pendants, jewellery repairs and bespoke designs.
Whether you're a professional jeweller, designer or sourcing a replacement diamond, our calibrated loose lab grown diamonds provide a convenient option for creating distinctive jewellery or replacing existing stones.
Loose Coloured Lab Grown Diamonds
The Carat Club supplies loose lab grown diamonds in a range of calibrated sizes, shapes and colours, making it easy to source stones for new jewellery, existing settings and bespoke designs.
United Kingdom
Royal Mail Tracked 24 - free for all UK orders up to £200
Royal Mail Special Delivery - free for orders over £200
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International
Royal Mail International Tracked & Signed — free on orders over £50, otherwise £9.99
FedEx Connect Plus — free for orders over £300
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Customs & Duties
International orders outside the UK may be subject to customs duties and import taxes upon delivery, which are the buyer's responsibility.
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Dispatch Times
Round melee dispatched within 2 business days.
Fancy melee and certified diamonds within 5 business days.
UK delivery in 1 business day from dispatch.
International delivery in 3–5 business days from dispatch.
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Returns
We’re committed to your complete satisfaction. Enjoy hassle-free returns or exchanges on all items within 30 days of delivery.
Top Grade Rough
Our lab grown melee diamonds are created using the High Pressure High Temperature (HPHT) growth process, which replicates the natural conditions deep within the Earth's mantle. This produces exceptional colourless, high-clarity diamonds that require no post-growth treatments. Every diamond offers the same physical, chemical and optical properties as a natural diamond
The Perfect Cut
Every lab grown melee diamond is expertly cut to maximise brilliance, fire and scintillation. Precision calibration ensures each stone matches the required dimensions, with a manufacturing tolerance of just ±0.04 mm, making them ideal for pavé setting, micro-setting, engagement rings, wedding bands, jewellery repairs and fine jewellery manufacturing