Have a jewelry design, CAD file, sketch or reference image?
Brrin Jewelry provides custom lab-grown diamond jewelry manufacturing for brands, designers, wholesalers and trade clients. We can develop your design from an existing CAD file, technical drawing, sketch or reference image and support the project through production.
Start with Your Design
You can send us:
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CAD or 3D design files
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Technical drawings
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Hand sketches
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Reference images
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Existing jewelry samples
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Basic product specifications
If the design is not production-ready, our CAD team can help adjust the structure, stone layout and manufacturing details before production.
From CAD to Finished Jewelry
Our production process can include:
Design Review → CAD Development → Diamond Sourcing → Stone Matching → Casting → Setting → Polishing → QC → Delivery


In-house jewelry production and finishing.

Finished jewelry after setting, polishing and quality control.
We support custom rings, earrings, pendants, bracelets, necklaces and other diamond jewelry projects.
Lab-Grown Diamond Sourcing
We can source lab-grown diamonds according to your project requirements, including:
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Round and fancy shapes
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Calibrated stones
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Large carat diamonds
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Matching pairs and layouts
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Melee diamonds for pavé and micro-pavé
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IGI-certified center stones when required
Diamond specifications can be selected according to your design, target quality and budget.
Flexible Custom Production
We work with independent jewelry brands, designers and trade clients who may not require traditional large-volume manufacturing.
Projects can include:
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New product development
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Sample production
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Small-batch jewelry manufacturing
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Custom engagement rings
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Tennis bracelets and necklaces
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Fancy-shape diamond jewelry
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Large-carat jewelry
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Micro-pavé and detailed setting work
What We Need for a Quote
To review your project, please provide as much information as possible:
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Product type
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CAD, sketch or reference image
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Metal type and color
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Diamond shape, size and quality
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Ring size or finished dimensions
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Estimated quantity
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Target delivery schedule
If some specifications are not confirmed yet, we can discuss the project before preparing the final quotation.
Request a Custom Manufacturing Quote
Send your project details, CAD file, sketch or reference image to:
Email: sales5@brrin.com
Brrin Jewelry
Panyu, Guangzhou, China
Lab-Grown Diamond Jewelry OEM/ODM Manufacturer