Precision Crafted.
Brilliant Forever.
Bluberry Diamonds & Minerals transforms rough diamonds, gold and precious minerals into masterpieces through precision cutting, expert polishing, refining and world-class craftsmanship.
Crafting brilliance since day one.
Bluberry Diamonds is the luxury brand of Bluberry Diamonds and Minerals (Pty) Ltd — a South African house dedicated to transforming rough diamonds, gold and other precious minerals into exceptional masterpieces. Every stone and every ounce is treated with precision, integrity and uncompromising craftsmanship.
From diamond cutting and polishing to gold refining, platinum and silver finishing, and the responsible handling of secondary minerals, we combine traditional expertise with advanced technology to maximise beauty, brilliance and value — for jewellery manufacturers, mining partners, private collectors and the world's most discerning houses.
Services rendered with reverence.
From rough evaluation to certified brilliance — every service is executed by master craftsmen with decades of shared experience.
Diamond Cutting
Precision cutting that unlocks maximum brilliance from every rough.
Diamond Planning
3D laser planning to preserve weight and optimise beauty.
Diamond Polishing
Hand-finished polishing on state-of-the-art scaifes.
Diamond Grading
International grading to GIA-aligned standards.
Diamond Inspection
Microscopic inspection for flawless clarity assessment.
Diamond Valuation
Independent, market-aligned valuations.
Custom Finishing
Bespoke finishing for signature stones.
Manufacturer Support
Trusted partner to leading jewellery houses.
Diamond Consulting
Advisory across sourcing, planning and strategy.
Gold, platinum & precious minerals.
As Bluberry Diamonds and Minerals, we extend the same reverence for craft to gold, platinum, silver and secondary minerals — cutting, polishing, refining and finishing to the standards demanded by the world's leading houses.
Gold Refining & Finishing
Precision refining of raw gold to investment-grade purity, plus hand-finished polishing for bullion, bespoke bars and jewellery components.
Platinum Cutting & Polishing
Master finishing of platinum blanks and settings — mirror-polish surfaces engineered for the world's highest-end jewellery houses.
Silver Craftsmanship
Cutting, polishing and detailing of sterling and fine silver for luxury manufacturers, private commissions and collectors.
Secondary Minerals Handling
Responsible processing of tanzanite, emerald, sapphire, ruby and other precious minerals recovered alongside primary diamond and gold operations.
Assay & Purity Testing
Independent assay, fire-testing and spectrographic analysis to certify purity, karat and mineral composition.
Mineral Trade Advisory
Advisory for miners, traders and manufacturers on sourcing, compliance, valuation and export of precious minerals.
From rough to radiant.
A seven-stage ritual honed over generations, guided by science and finished by hand.
Diamond Assessment
Every rough evaluated by senior graders for weight, colour, clarity and potential.
3D Laser Planning
High-resolution scanning maps the ideal cutting plan for maximum yield.
Precision Cutting
Master cutters execute the plan with micron-level accuracy.
Fine Polishing
Facets are polished by hand until the diamond reveals its full fire.
Quality Inspection
Each stone is inspected under microscope and light performance rigs.
Certification
Grading and certification to internationally recognised standards.
Delivery
Discreet, insured delivery worldwide.
Eight reasons the world's finest houses choose us.
Maximum Brilliance
Every cut engineered to release a diamond's fullest fire.
State-of-the-Art Technology
3D laser mapping, robotic polishing and precision optics.
Experienced Craftsmen
Master cutters with decades of shared experience.
Secure Handling
Insured, audited chain-of-custody at every stage.
International Standards
Aligned with GIA, IGI and world-class grading protocols.
Customer Confidentiality
Absolute discretion for every client, every stone.
Ethical Practices
Fully compliant with the Kimberley Process.
Unmatched Precision
Tolerances measured in microns, not compromises.
A study in light.
Ancient craft. Modern precision.
We invest in the most advanced diamond technology available — because the hand of the master craftsman deserves the finest tools.
Trusted across the industry.
"Bluberry delivered a level of finish we typically only see from the historic European houses. Extraordinary work."
"Their planning saved us weight we thought was lost. The stones came back more brilliant than we imagined."
"Discretion, precision and integrity. They are our first call for every important stone."
Answers, clearly cut.
Speak with Bluberry Diamonds.
Speak with a Bluberry specialist about your stone, your project, or your vision. All enquiries are handled with absolute discretion.