01Diamond Growth
Natural and laboratory-grown diamonds, sourced to meet precise specifications across diverse shapes, sizes, colours, and qualities.
Diamond & Jewellery Manufacturing
The Art & Science of Diamond Creation.
We are not resellers. We are the manufacturers. Explore the technology that defines our quality.
From Diamond Expertise to Exceptional Jewellery
From Diamond Creation to Finished Jewellery
Belliza brings together diamond manufacturing, diamond sourcing, precision cutting and polishing, jewellery design and jewellery manufacturing to create solutions for jewellery brands, retailers, manufacturers and private clients.
Our diamond portfolio includes natural diamonds and laboratory-grown diamonds across a broad range of shapes, sizes, colours and qualities. Our jewellery manufacturing capabilities allow these diamonds to be transformed into finished jewellery according to individual design and production requirements.
Why Belliza
The Advantage of the Source.
Manufacturing expertise combined with flexible sourcing, quality control, and dependable service for individual and business requirements worldwide.
01
Direct Manufacturing
Direct access to manufacturing capabilities enables greater control over quality, specifications, production, and supply.
02
Flexible Specifications
From individual stones to larger requirements, specifications can be aligned with your product, design, and sourcing needs.
03
Quality Control
Attention to precision, consistency, finishing, and specifications helps maintain dependable quality across every requirement.
04
Global Supply
Supporting customers across international markets with dependable sourcing and supply solutions.
05
Reliable Service
Clear communication, responsive support, and practical solutions throughout the sourcing and supply process.
06
Long-Term Partnership
Built around consistency, trust, transparent communication, and relationships designed to grow over time.
The Craft Behind Our Diamonds
How a Diamond Becomes a Finished Stone
Every stage contributes to the final appearance, performance and quality of a diamond. Our manufacturing workflow combines technology with skilled human expertise.
01
02Planning & Mapping
Rough material is evaluated and planned to determine the most suitable cutting strategy for the desired shape, size and quality.
03Laser Cutting
Precision laser technology can be used for accurate cutting and preparation of diamond material before polishing.
04Cutting & Shaping
Diamond cutters transform rough material into precise shapes designed to meet the requirements of the final stone.
05Polishing
Careful polishing develops the facets and surface finish that contribute to a diamond's visual appearance and light performance.
06Quality Control
Finished diamonds undergo quality checks for specifications including carat weight, colour, clarity, cut-related characteristics, polish and symmetry.
Belliza ManufacturingGlobal Diamond Supply
Belliza offers a comprehensive range of natural and lab-grown diamonds in a wide selection of shapes, colours, cuts, and clarity grades.
100K+
Customers
10M+
Diamonds Supplied
IGI / GIA
Certification
We offer diamonds from 0.001 carat to 10+ carats, with carefully selected stones available across a broad range of specifications. IGI and GIA certification is available for eligible diamonds, with certification applicable from 0.50 carat and above, subject to the individual stone and certification requirements.
Our Diamond Portfolio
Natural & Lab-Grown Diamonds
Belliza serves customers looking for both natural diamonds and laboratory-grown diamonds, with options across a wide range of shapes, sizes, colours and qualities.
Natural Diamonds
Natural diamonds are formed through geological processes deep within the Earth over extremely long periods of time. Each natural diamond has its own combination of characteristics, including carat weight, colour, clarity, cut and proportions.
Belliza can source natural diamonds according to specific shape, size, colour, clarity, certification and budget requirements.
Lab-Grown Diamonds
Lab-grown diamonds are diamond material created using controlled technological processes. Belliza works with CVD and HPHT laboratory-grown diamond technologies.
Available options include white diamonds, fancy-colour diamonds, and larger stones, subject to inventory and specific requirements.
Jewellery Manufacturing
From Diamond to Finished Jewellery
Belliza combines diamond expertise with jewellery manufacturing to help transform diamonds and design concepts into finished jewellery.
We support custom jewellery projects and professional jewellery manufacturing requirements, from design development and CAD to production, diamond setting, finishing and quality control, subject to the specific project and manufacturing requirements.
Our Jewellery Manufacturing Process
01Design Consultation
We understand the jewellery concept, diamond requirements, metal preference, dimensions, budget and production requirements.
02CAD Design
The jewellery concept can be developed into a detailed computer-aided design for review and production planning.
033D Model & Approval
The proposed design can be reviewed for proportions, dimensions, stone placement and overall appearance before production.
04Model Production
An approved design can be converted into a production model suitable for the selected manufacturing process.
05Casting
The jewellery model can be cast using the selected precious metal and required production specifications.
06Filing & Finishing
The jewellery is cleaned, filed and prepared for diamond or gemstone setting and final finishing.
07Diamond Setting
Diamonds and gemstones are carefully positioned and secured according to the approved jewellery design.
08Polishing & QC
The finished jewellery undergoes final polishing and quality inspection before delivery.
Design, CAD & Model Development
Every creation begins with a clear design vision. From initial sketches and reference imagery to detailed CAD development, our team transforms concepts into precise, production-ready models. Each design is meticulously reviewed for proportions, dimensions, stone placement and structural integrity—ensuring every detail is refined before production begins.
Fine Jewellery
Jewellery for Every Occasion
Our jewellery manufacturing capabilities can support a variety of classic, contemporary and bespoke jewellery designs.
Engagement Rings
Wedding Rings
Diamond Rings
Earrings
Diamond Earrings
Pendants
Diamond Pendants
Necklaces
Bracelets
Bangles
Diamond Jewellery
Custom Jewellery
Custom Jewellery
Jewellery Built Around Your Vision
Whether you have a sketch, reference photograph, CAD file or simply an idea, our team can help develop the concept into a production-ready jewellery design.
- Engagement Rings
- Wedding Rings
- Earrings
- Pendants
- Necklaces
- Bracelets
- Bangles
- Custom Designs
B2B Manufacturing
Manufacturing for Jewellery Businesses
Belliza can support jewellery brands, retailers, designers and professional buyers looking for custom jewellery manufacturing, diamond sourcing and production support.
- Private Label Jewellery
- Custom Jewellery Collections
- Diamond Jewellery Manufacturing
- Wholesale Jewellery
- Small-Batch Production
- Bespoke Jewellery
Precious Metals
Jewellery in Your Preferred Metal
Jewellery can be developed according to the selected precious metal, design requirements and production specifications.
Silver
Available according to design, purity, production and project requirements.
Gold
Available according to design, purity, production and project requirements.
Platinum
Available according to design, purity, production and project requirements.
Fine Jewellery Manufacturing
Crafted for Brands That Demand Excellence
From diamonds to finished jewellery, Belliza provides end-to-end manufacturing solutions for global jewellery brands, retailers and designers. Combining precision, craftsmanship and responsible sourcing, we transform concepts into refined jewellery created to meet exacting international standards.
Wholesale Diamonds
Diamond sourcing and supply for professional jewellery businesses.
Custom Jewellery
Develop jewellery around your design, diamond and production requirements.
Private Label
Manufacturing support for jewellery brands developing their own collections.
Diamond Jewellery
Combine natural or lab-grown diamonds with custom jewellery designs.
Bespoke Production
Create individual jewellery pieces according to specific requirements.
Jewellery Collections
Support for brands developing coordinated jewellery collections.
Belliza Certification
Certified Diamonds & Jewellery — Authenticity, quality and complete documentation for every piece
We provide comprehensive certification and documentation for both diamonds and fine jewellery. Where applicable, individual stones and finished pieces may be submitted to internationally recognised gemological laboratories, including IGI (International Gemological Institute) and GIA (Gemological Institute of America), for independent grading and certification. Each report documents the relevant quality characteristics, specifications and identity of the piece, providing transparency, confidence and assurance at every stage.
Diamond Specifications
Review available information such as carat weight, colour, clarity, measurements and applicable grading characteristics.
Jewelry Specifications
Access verified certification and documentation for each jewellery piece, including key details on materials, gemstones and specifications.
Frequently Asked Questions
Diamond & Jewellery Manufacturing FAQs
Join With Belliza Family
Let’s Create Something Exceptional With Belliza
Whether you are sourcing a specific diamond, developing a bespoke jewellery collection or seeking a trusted manufacturing partner, Belliza works with brands, designers, retailers and professional buyers worldwide. Share your requirements — from diamond shape, carat, colour and clarity to certification, design and manufacturing specifications. Our team will help develop the right solution with precision, discretion and attention to detail.
Connect With Belliza