Grow
Laboratory-grown diamond production using controlled growth technology appropriate to the order.
About Black Jack
BLACK JACK® · FINE JEWELRY
Our House · Our Craft · Our Story
Wear the Power.
Black Jack® creates laboratory-grown diamond jewelry and Memory Diamonds for the moments people choose to carry forward— love, commitment, remembrance and legacy.
Rooted in diamond craftsmanship in Surat, India and serving U.S. customers through Black Jack LLC, our approach combines modern laboratory technology, fine-jewelry design and clear product disclosure.
Laboratory-Grown Diamonds Custom Memory Jewelry Worldwide Service
More Than Brilliance
Jewelry should not only be seen. It should mean something.
Our collections are built around the belief that modern fine jewelry can unite emotion, craftsmanship and responsible disclosure without losing the sense of luxury that makes a piece unforgettable.
Diamond shape, color and finished appearance vary by selected specifications, production outcome and custom design.
The Black Jack Story
From diamond craft to personal legacy.
Black Jack began as a jewelry vision shaped by craftsmanship, precision and the belief that a diamond can carry meaning beyond its appearance.
Over time, that vision expanded into laboratory-grown diamonds, engagement and wedding jewelry, silver gemstone jewelry and the Black Jack® Memory collection— custom memorial diamonds created through a documented laboratory process.
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Craft Jewelry design, stone selection, finishing and quality review centered around the final wearer.
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Technology Laboratory-grown diamonds created under controlled conditions and clearly identified as lab-grown.
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Meaning Custom Memory Diamond and fine-jewelry options for remembrance, proposals, anniversaries and personal milestones.
Black Jack® Memory
A diamond created around a memory.
A Black Jack Memory Diamond is a custom laboratory-grown diamond produced for a personal or memorial keepsake order through a controlled, documented workflow.
For eligible orders, submitted hair or qualifying ashes can be processed for carbon recovery and purification. Purified carbon may be used as part of the custom laboratory production process according to the selected order and documented method.
The finished gemstone is a laboratory-grown diamond. It is not presented as a mined or natural diamond, and the finished crystal does not retain biological tissue or DNA.
Custom outcomes vary. Before ordering, review the applicable product page for source-material eligibility, required quantity, target specifications, current production timeline, grading options, cancellation and return terms.
From Growing to Glowing
One design language. Multiple stages of precision.
Product workflows vary, but every Black Jack piece is developed around controlled specifications, craftsmanship and a final quality review.
Cut
Planning, cutting and polishing according to the selected shape, proportions and finish.
Create
Fine-jewelry design and manufacturing for engagement, wedding, memorial and custom pieces.
Verify
Order review, applicable Black Jack documentation and optional external grading where available.
Discover Black Jack
Designed for commitment, remembrance and everyday luxury.
Transparency Is Part of Luxury
Clear information before a custom order begins.
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Laboratory-grown origin disclosed
Black Jack does not represent laboratory-grown diamonds as mined or natural diamonds.
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Custom-order documentation
Memory Diamond orders use order references and documented handling steps appropriate to the service.
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Certification information
Applicable Black Jack documentation is provided; optional third-party grading may be available for eligible diamonds.
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Worldwide customer service
Black Jack LLC supports the U.S. market, with international service and shipping availability depending on destination.
Frequently Asked Questions
About Black Jack & Memory Diamonds
What is a Black Jack Memory Diamond?
It is a custom laboratory-grown diamond created for a memorial or personal keepsake order through Black Jack's documented laboratory process.
Are Black Jack Memory Diamonds natural or mined diamonds?
No. Black Jack Memory Diamonds are laboratory-grown diamonds and are identified as lab-grown rather than mined or natural diamonds.
Can hair or ashes be submitted for a Memory Diamond order?
Eligible orders may accept hair or qualifying ashes as a submitted carbon source. Required quantity, source eligibility and packing instructions depend on the selected service and should be confirmed before sending material.
Can I choose the diamond shape, carat size and jewelry design?
Available options vary by order. Black Jack offers multiple diamond shapes and custom settings, including loose Memory Diamonds, engagement rings and other fine-jewelry designs.
How can I learn about certification and authenticity?
Visit the Black Jack Certification & Authenticity page for current documentation and verification information. Optional external grading may be available for eligible diamonds with additional time and cost.
Black Jack® · Wear the Power
Create something that stays meaningful.
Explore a custom Memory Diamond, choose a laboratory-grown diamond engagement ring, or contact our team about a personal fine-jewelry project.
Customer support: memorydiamond@brandblackjack.us