Infinite reuse.
Pure profit. Master the 1carat technique.
22 years proven.

THE ONLY REUSABLE DIAMOND TECH.

Real diamonds=
A New Business Era
🇯🇵 From Japan




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Technical Training + Business Training

Get 10% OFF Diamond Nail Technique Course
Use Code: LAUNCH10 at Checkout
Offer ends November 30, 2025

Diamond Nail Technique Course
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✅ “REAL DIAMONDS. REUSABLE FOREVER. CHOOSE YOUR PATH.”

TECHNIQUE FOUNDATION

$299USD

🇦🇺A$460 / 🇬🇧£235 / 🇪🇺€280

✓Full Online Course Access (Lifetime)
✓Digital Certification upon completion
✓Exclusive Digital Resource
Library
✓ Self-paced learning at your own speed
✓ Access to all technique modules

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DIAMOND BIZ LICENSE

$999USD

🇦🇺A$1550 / 🇬🇧£790 / 🇪🇺€930

✓Full, Lifetime Course Access
✓Prof training completion
✓StyleBook Publication Eligibility
✓Genuine Bridal-Grade
Diamond Kit
*Global Shipping & Import Duties

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SWAROVSKI MODULE

$499USD

🇦🇺A$765 / 🇬🇧£395 / 🇪🇺€465

✓Curated Practice Stones
✓Training completion recognition
✓Global Sourcing & Practice
✓Color collection
✓Essential for hands-on skill
verification

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DETAIL

How It Works
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Enroll Online

Receive Diamond Kit*

Master the Technique

Practice

Pass Final Assessment
(80% required)

Launch Your Diamond Service

*Diamond Kit included with Diamond Biz License ($999)

FAQ

No prerequisites required. The course is designed to teach the complete technique from foundation to advanced application.

No, you can source materials locally. Our technique works with any quality stones. However, we offer premium Japanese-selected diamonds for those who want guaranteed quality.

Yes, we ship worldwide via EMS with insurance. Shipping time varies by location. Note: Kits contain diamonds, stones and pearls only, no solvents.

Digital certificate is issued automatically upon passing the quiz. Physical headquarters-issued certificates may be available in the future.

Course Only ($99) includes complete online training and certification. Course + Zirconia Kit ($139) adds practice materials. Course + Diamond Kit ($650) includes genuine diamonds for professional use. All options provide lifetime course access.

Lifetime access with a one-time purchase. No monthly fees, no expiration date. Once you purchase, you’re a permanent member with access to additional diamond purchases.

You can retake the quiz as many times as needed. The passing score is 80%, and there’s no time limit or additional fee for retakes.

While feature placement is not guaranteed for all graduates, we actively seek exceptional work to showcase. Our technical directors review submissions StyleBook (published on Amazon) and our official Instagram.

We genuinely want to promote outstanding diamond nail artistry to the world, so we encourage you to submit your best work after certification. Selected artists gain valuable exposure to international luxury clientele and recognition within the professional community.
E-mail : info@1carat.net

Melee diamonds (small stones) typically don’t come with lab certificates due to cost. Instead, we provide our 1carat Certificate of Authenticity guaranteeing genuine diamonds selected to our standards.

1carat™ operates multiple websites globally. Both 1carat-online.com (Japanese) and 1carat-dna.com (English) are official 1carat™ International sites. Your purchase is secure and legitimate.

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