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Case Study · OEM · White Label

Moutai Diamond:
Heritage in Carbon

Full OEM white-label production of 512 commemorative diamonds from red sorghum grain carbon over an 18-month contract. Zero BioGem Lab branding — every customer-facing element carried the partner's identity.

512

Units Produced

0.3–1.2

Diamond Size (ct)

48

Timeline (Days)

15,000g

Sorghum Carbon

CCIC

CCIC Certified

0.3%

Return Rate

Challenge

Invisible Supply Chain

A prestigious Chinese cultural heritage brand required a 512-unit commemorative diamond collection to mark 70 years of continuous operation. The strict requirement: zero BioGem Lab branding on any customer-facing material.

Every certificate, box, card, and document had to appear as if produced entirely by the partner. This demanded a complete white-label infrastructure: custom velvet-lined presentation cases, gold-embossed partner logos, bilingual certificates, and RFID-enabled authenticity cards.

Solution

Turnkey OEM Pipeline

BioGem Lab deployed its full OEM manufacturing pipeline: carbon extraction from red sorghum grains, HPHT synthesis at 5.5 GPa / 1,450°C, precision cutting to VS1+ clarity and G+ color standards, and complete fulfillment packaging.

Round brilliant cut exclusively. Custom velvet-lined cases with gold-embossed partner logos. Bilingual certificates (Chinese/English). RFID-enabled authenticity cards for each unit. Direct-to-customer dropshipping under the partner's brand identity.

Result

512 Units, 0.3% Return

All 512 diamonds were delivered over 18 months with an average fulfillment time of 48 days. The return rate was just 0.3% — well below industry standards for commemorative jewelry.

The partner successfully launched a limited-edition heritage collection that sold through allocated channels. BioGem Lab remained entirely invisible to end consumers, validating the white-label model at scale.

Production Timeline

From Grain to Gem

A seven-stage production pipeline transforming red sorghum grain carbon into certified commemorative diamonds.

Carbon Collection

Red sorghum grains sourced and logged

Carbon Extraction

Thermal decomposition to graphite powder

Purification

Multi-stage refinement to ≥99.9% purity

HPHT Growth

5.5 GPa, 1,450°C crystal synthesis

Cutting

Round brilliant, precision polished

Certification

4C grading + partner-branded certs

Delivery

White-label packaging, direct shipping

Process Documentation

Lab & Production Gallery

Real process images from the Moutai Diamond production run — carbon extraction, purification, and HPHT synthesis.

Red sorghum grains in hands — raw carbon source for Moutai Diamond commemorative production

Raw Carbon Source

Red sorghum grains selected for carbon extraction

Red sorghum grains handled with gloves in laboratory setting for carbon preparation

Sample Preparation

Gloved handling for contamination-free processing

Sorghum samples arranged on lab workbench for carbon extraction process

Sample Arrangement

Organized batch preparation for extraction

Sorghum samples in processing bags ready for carbon extraction

Batch Processing

Bagged samples queued for extraction

Carbon extraction beakers in laboratory showing chemical purification process

Carbon Extraction

Beaker-based chemical decomposition process

Purified carbon powder in glass vial — first extraction result from sorghum grain

Purified Carbon (Vial 1)

Graphite powder ready for HPHT synthesis

Second purified carbon powder vial showing consistent extraction quality

Purified Carbon (Vial 2)

Consistency across multiple extraction batches

Lab technicians operating HPHT equipment during diamond synthesis

HPHT Synthesis Operation

Technicians monitoring six-anvil press during crystal growth at 5.5 GPa and 1,450°C

"The white-label execution was seamless. Our customers received products that looked entirely ours — from the certificate to the packaging. BioGem Lab's supply chain was completely invisible, which is exactly what we needed."

Partner Representative

Heritage Brand, China · OEM Client

Related Technologies & Resources

HPHT Technology

5.5 GPa pressure, 1,450°C temperature synthesis. Technical specifications and process parameters.

Manufacturing

Industrial-scale production with laboratory precision. Capacity, quality control, and fulfillment.

Partnership Program

White-label OEM setup, MOQ terms, and onboarding process for B2B partners.
FAQ

Frequently Asked Questions

Can agricultural byproducts be used as carbon sources for memorial diamonds?

Yes. The Moutai Diamond project demonstrated that sorghum grains, grain husks, and other agricultural byproducts can be successfully converted into gem-quality diamonds through our patented carbon extraction and HPHT synthesis process. Any carbon-bearing organic material can be processed.

What does "zero BioGem Lab branding" mean in practice?

It means every customer-facing element — certificates, packaging, documentation, shipping labels, and traceability portals — carries only the partner's brand identity. BioGem Lab operates as a silent manufacturer. Even the CCIC traceability QR code resolves to a page branded with the partner's logo and colors.

What quality standards were maintained for this production run?

All 512 diamonds met VS1+ clarity and G+ color standards. Round brilliant cut exclusively. Each unit underwent 4C gemological assessment and received an independent grading report. The 0.3% return rate indicates consistent quality across the full production run.

How long does a 500-unit OEM contract typically take?

The Moutai Diamond contract was executed over 18 months with an average per-unit fulfillment of 48 days. Larger contracts can be staged with quarterly delivery schedules to align with partner marketing calendars and inventory needs.

What packaging options are available for white-label partners?

Partners can specify custom packaging from velvet-lined presentation cases to minimalist eco-friendly boxes. Gold embossing, laser etching, partner logos, and bespoke color schemes are all supported. RFID-enabled authenticity cards can be included as an optional upgrade.

Ready for White-Label OEM Production?

Whether you need 50 units or 500, we can manufacture commemorative diamonds under your brand with complete supply-chain invisibility.

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