7.40 Carat Lab-Grown Diamond Three Stone Engagement Ring Oval Cut with

PRODUCT DETAILS

Please read our frequently asked questions to find out more.

Product Specs

• Stone Type: Lab-Grown Diamond / Lab-Grown Gemstone
• Creation Method: Advanced CVD Technology
• Metal Options: 14K / 18K Gold, Platinum, Sterling Silver
• Finish: High Polish
• Customization: Available (Size, Metal, Stone)
• Certification: Brand Authenticity Certificate (Optional IGI on request)

👉 Ethically made, conflict-free, and responsibly crafted.

Details

This jewelry piece is thoughtfully designed to combine modern elegance, durability, and ethical craftsmanship.
Each stone is precision-cut for maximum brilliance and set by skilled artisans to ensure comfort and long-lasting wear.

Whether chosen for daily elegance, a meaningful gift, or a once-in-a-lifetime moment, this piece reflects quality you can see and trust you can feel.

✔ Made to order
✔ Premium finishing
✔ Designed for long-term wear

Shipping & Returns

Memory Diamond Jewelry (Ashes / Hair Carbon):
• Once ashes or hair carbon are delivered to our address, production begins.
• Diamond creation time depends on the selected diamond size and cut.
• Estimated production & processing time: 20 to 45 days.
• After completion, the jewelry is carefully set and prepared for shipment.

Regular Jewelry (Lab-Grown / Gemstone / Silver Jewelry):
• Processing time: 7–10 business days.
• Includes stone setting, quality check, and secure packaging.

Care Guide

To maintain brilliance and finish:
• Store separately in a soft pouch
• Avoid harsh chemicals, perfumes, and water exposure
• Clean gently with a soft cloth
• Remove before heavy activities

✨ Proper care ensures your jewelry stays beautiful for years.

Warranty

• Manufacturing warranty included
• Covers craftsmanship and setting issues
• Does not cover accidental damage or misuse

🛡 We stand behind our craftsmanship.

About the stone

Lab-Grown Diamond / Gemstone

Lab-grown stones are real gemstones, created using advanced technology that replicates natural conditions.
They offer the same beauty, hardness, and sparkle — with better value and ethical sourcing.

✔ Eco-conscious
✔ Conflict-free
✔ Visually identical to natural stones

WHY BLACK JACK®

MADE WITH CARE & SCIENCE

Each piece is created using advanced lab-grown CVD technology, combining science, precision, and emotion. From memory diamonds to lab-grown gemstones, every stone is ethically crafted with strict quality control.

AUTHENTIC & CERTIFIED

We provide a Brand Authenticity Certificate with every jewelry piece.
Optional IGI certification is available on request for lab-grown diamonds.
Transparent process. No hidden claims. Lifetime trust.

SAFE & INSURED DELIVERY

Worldwide insured shipping with discreet packaging.
Memory diamond orders are crafted specially for you, while regular jewelry ships fast.
Tracking is shared once your order is dispatched.

Crafted With Precision. Backed by Trust.

REAL LAB-GROWN DIAMONDS & FINE JEWELRY YOU CAN TRUST

At Black Jack®, we specialize in ethically crafted lab-grown diamonds, memory diamonds made from human or pet ashes, and fine gold & silver jewelry.
Each piece is created using advanced CVD technology, handcrafted by skilled artisans, and delivered with complete transparency and care.

From custom memorial diamonds to everyday lab-grown diamond jewelry, we focus on quality, authenticity, and lasting value.

THE FINEST GEMSTONES

YOUR STYLE, OUR DESIGN

ROMANCE IS PRICELESS

THE FINEST GEMSTONES

YOUR STYLE, OUR DESIGN

ROMANCE IS PRICELESS

THE FINEST GEMSTONES

YOUR STYLE, OUR DESIGN

ROMANCE IS PRICELESS

Custom Design

JEWELRY IS THE COMPANION OF LOVE✨

For women, jewelry is often seen as a way to express their personal style and add a touch of glamour to their outfit. Popular jewelry styles for women include delicate necklaces, statement earrings, and stackable bracelets.

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