OCEAN DIAMONDS

What OCEAN DIAMONDS does

Ocean Diamonds is a marine diamond sourcing company that recovers natural diamonds from the ocean seabed off the west coast of Southern Africa through professional diver-based extraction. The company's core technology is a low-impact hand-diving method operating in shallow water and the surf zone, where 51 divers across 9 boats and 8 shore units recover diamonds by hand from licensed concession holders. Recovered stones are cut and polished by skilled artisans in South Africa and India, with diamonds over 0.25ct receiving GIA or EGL certification and laser inscription of the Ocean Diamonds brand mark for traceability. Each diamond is accompanied by a Certificate of Provenance specifying country of origin and coastal location, supporting the company's proprietary 8Cs quality framework (extending the traditional 4Cs with Coastal Origin, Conscience, Craftsmanship, and Certification).

The business operates a strict B2B trade-only model, selling rough and polished diamonds exclusively to registered jewellery designers and trade professionals through a password-protected trade portal; individual consumers are directed to the global approved retailer network of over 100 partners across the UK, continental Europe, the Americas, Asia (Singapore, Japan, Thailand), Australia, New Zealand, and South Africa. Pricing is not publicly disclosed and is accessible only to registered trade accounts. The company is certified by the Responsible Jewellery Council (Certificate 0000 4775) and compliant with the Kimberley Process Certification Scheme, and is led by founder Robert Goodden from its registered office in Falmouth, Cornwall. Operational scale is intentionally small (7 employees), with outsourced seasonal diving limiting annual volume and positioning the company as a niche, provenance-led specialist rather than a volume diamond supplier.

Name

OCEAN DIAMONDS

Legal name

Ocean Diamonds Limited

Website

https://oceandiamonds.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Ocean Diamonds is a UK-based marine diamond sourcing company that recovers natural diamonds from the seabed off Southern Africa via professional divers and sells them exclusively to jewellery designers and trade partners through a global network of 100+ approved retailers.

Ownership category

akta.pro rank

Product category

Marine Diamond Sourcing and Supply

SIC

Wholesale-Jewelry, Watches, Precious Stones & Metals (5094)

akta.pro primary industry

Diamond Jewelry (CRAKAAAA)

akta.pro secondary industries

Polished Diamond Trading & Brokerage (CRAKAJAD), Rough Diamond Trading & Brokerage (CRAKAJAC)

Keywords

• Marine diamond recovery
• Ocean-sourced diamonds
• Rough diamond sales
• Polished diamond supply
• Ethical diamond sourcing

Headquarters

HQ city

Falmouth

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure, Others

Revenue model

1. Rough/RAW Diamond Sales: Sale of uncut, untamed rough diamonds exactly as nature intended - these are unprocessed diamonds recovered directly from the ocean seabed.
2. Cut and Polished Diamond Sales: Sale of cut, polished, and proportioned diamonds that have been processed by skilled artisans in South Africa and India. These diamonds are EGL or GIA certified depending on type and size.
3. Trade-Only B2B Sales: Diamonds are sold exclusively to jewellery designers and trade partners, not directly to consumers. The company operates a trade registration system with username/password access to view inventory.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

Ocean Diamonds recovers natural diamonds from the ocean seabed off the West Coast of Southern Africa using professional divers, then supplies them as rough/raw stones or as cut and polished stones processed by artisans in South Africa and India. The company sells exclusively B2B to jewellery designers and approved trade partners, with each diamond accompanied by a Certificate of Provenance and certified by GIA or EGL depending on type and size.

Product overview

Ocean Diamonds is a specialist marine diamond company offering a focused portfolio of ocean-sourced natural diamonds. The core offering comprises Raw Diamonds (uncut, untamed stones retrieved by professional divers from the seabed off the West Coast of Southern Africa) and Artistry Cut & Polished Diamonds (processed in South Africa and India). Each diamond is supported by a Certificate of Provenance verifying ocean origin and coastal location. Larger stones (0.25ct+) receive GIA or EGL certification with laser marking for authenticity. The company sells exclusively to jewellery designers and trade professionals through a B2B portal, and has established a global network of approved retail partners across Europe, America, Asia, Australia, New Zealand, and South Africa.

Differentiator

Problem solved

Functional benefit

Products and services

• Raw Diamonds

Quantifiable outcome

• Low environmental impact extraction with minimal seabed disturbance - any signs of divers working disappear quickly due to wave action
• +1 more outcomes

Named customers12 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Responsible Jewellery Council (RJC)coreStrategic or Co-development PartnerOcean Diamonds is a Certified Member of the Responsible Jewellery Council (RJC), Certificate number 0000 4775. RJC is an organization committed to promoting responsible ethical, human rights, social and environmental practices throughout the jewellery supply chain. As a member, Ocean Diamonds supports the RJC's membership Code of Practices standards.
• GIA (Gemological Institute of America)coreTechnology or IntegrationDiamonds larger than 0.25ct are GIA Certified and laser marked with their unique certificate number. Ocean Diamonds' GIA inventory sourced after September 2021 also carries the Ocean Diamonds brand mark laser inscribed on the girdle for traceability and authentication.
• EGL (European Gemological Laboratory)coreTechnology or IntegrationFancy coloured, champagne and cognac coloured diamonds over 0.25ct are EGL Certified, providing authentication and quality verification for these special diamond varieties.
• Malca-AmitminorOthersInternational shipping partner for secure diamond delivery. Shipping is handled by Malca-Amit with FedEx for global shipments.
• FedExminorOthersShipping carrier used in partnership with Malca-Amit for international diamond delivery.
• Diamond Office in LondoncoreTechnology or IntegrationRaw diamonds are incrementally assessed with the Diamond Office in London to ensure Kimberley Process compliance and conflict-free certification.
• South African Diamond Divers and SorterscoreStrategic or Co-development PartnerLocal professional diamond divers in Southern Africa who retrieve diamonds from the ocean in a responsible manner. The company works with local divers, diamond sorters, and cutters employed by choice and fairly paid. Operations are conducted through licensed concession holders.
• Indian Diamond ManufacturerscoreStrategic or Co-development PartnerDiamond manufacturers in India who cut and polish Ocean Diamonds. Workers are employed in the industry by choice and are fairly paid. The company has rigorous due diligence processes for this portion of the supply chain.
• Licensed Concession HolderscoreStrategic or Co-development PartnerOcean Diamonds supplies natural diamonds retrieved through licensed concession holders in Southern Africa, operating in the inshore ocean around the region.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Lucara Diamond Corp: Canadian-listed diamond producer operating the Karowe mine in Botswana, known for recovering exceptional, large, high-value stones. Comparable as a producer of premium, scarcity-positioned natural diamonds sold into the polished market — though Lucara's supply comes from a single terrestrial kimberlite mine.
• Forevermark (De Beers brand): De Beers' branded diamond programme that individually inscribes and tracks each diamond for authenticity and provenance. Comparable as a branded, individually-certified natural diamond programme targeting the premium segment with strong traceability and retail-network distribution.
• Petra Diamonds: A London-listed diamond mining group operating in Southern Africa (Tanzania, South Africa). Directly comparable as a natural diamond producer targeting the polished diamond market with a similar geographic footprint, though Petra operates terrestrial mines rather than marine recovery.
• Gem Diamonds: A London-listed diamond miner operating the Letšeng mine in Lesotho, producing large, high-value rough diamonds. Comparable as a producer of premium natural diamonds sold into the polished market, with similar Southern Africa geographic exposure and focus on exceptional stones.
• Brilliant Earth: A US-based online jewellery retailer focused on ethically sourced, conflict-free, and traceable natural and lab-grown diamonds. Comparable to Ocean Diamonds through its shared emphasis on provenance, ethical sourcing, and traceability messaging targeted at the conscious-consumer segment.
• Mountain Province Diamonds: A Canadian diamond producer operating the Gahcho Kué mine in Canada's Northwest Territories, with De Beers as a joint venture partner. Comparable as a mid-tier natural diamond producer selling rough into the polished market through established partnerships.

Broad incumbents

• De Beers Group: The world's largest and most established diamond mining, trading, and marketing company operating across the entire diamond value chain. De Beers is comparable as a vertically integrated natural diamond supplier, though it is vastly larger, terrestrial-mined, and operates a branded retail programme (Forevermark) rather than the marine/niche provenance positioning of Ocean Diamonds.
• ALROSA: The world's largest diamond miner by volume, producing rough diamonds and operating cutting/polishing facilities. Comparable to Ocean Diamonds as a major natural rough and polished diamond producer and trader, though ALROSA operates at vastly different scale and through terrestrial kimberlite mining rather than marine recovery.

Emerging players

• Leibish & Co. A specialist natural fancy coloured diamond trader and online retailer. Comparable to Ocean Diamonds as a niche, story-led, natural diamond specialist with strong provenance positioning — though focused on coloured stones and DTC rather than Ocean's marine/white-diamond B2B model.

Others

• DTC (now De Beers Auction Sales): Historically operated sightholder rough diamond sales and auctions as the primary B2B trading mechanism for natural diamonds. Comparable to Ocean Diamonds as a B2B rough/polished diamond trade channel, though operating at vastly different scale and through traditional terrestrial supply.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/OceanDiamonds_
• Facebookfacebook.com/OceanDiamondsADeeperBrilliance
• Instagraminstagram.com/oceandiamonds_
• Pinterestpinterest.co.uk/oceandiamonds_/_created
• LinkedInlinkedin.com/company/ocean-diamonds

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about OCEAN DIAMONDS