Customized™ 6ctw, 3ct Each Lab-Grown Diamond Stud Martini Earrings in White Gold
- Free worldwide shipping
- Lifetime Warranty
- Free Stone Inlay® or Engraving
- Wholesale Direct Pricing
Customized™ 6ctw Lab-Grown Diamond Stud Earrings – 3ct Each in Martini Setting in White Gold
A bold yet timeless statement. These 6ctw diamond studs (3ct each!) are designed for lovers of the ultra-sleek martini three-prong setting, offering max brilliance with minimal metal. Finished with secure screw-back posts, these are your forever go-to earrings—elegant, powerful, unforgettable.
Key Features
- Main Stones:
• 2x 9.1mm Round-Cut Lab-Grown Diamonds
• 3ct each (6ctw total)
• D–E color, VS1+ clarity
- Setting: Classic Martini Three-Prong
- Backings: Screw-back posts for security and comfort
- Metal Choice: 14K or 18K Solid White Gold
Why You'll Love Them
✔ Sleek and Secure – The martini setting pulls the stone closer to the ear for a clean profile
✔ Unmatched Sparkle – 6 total carats of lab-grown diamonds, graded for elite color and clarity
✔ Everyday Luxury – Whether dressing up or down, these studs bring elegance to any look
✔ Sustainable & Ethical – Same sparkle, none of the mining
Certified fire and brilliance, without the markup. Your next pair of forever earrings.
Material
14K Gold / 18K Gold
Color
White Gold
Main Stone
Diamond
Band Width/Chain Thickness
Stone
Key Features
💎 Diamond Quality Guarantee
“But wait — I don’t get to pick the exact stone?”
No worries — we make it simple.
How it works:
- Place your order.
- Within 24 hours, our team emails you the exact diamond video + IGI PDF certificate for your ring.
- You approve, and we set your stone.
The Luther’s Standard
Every diamond we select meets these guarantees:
- DEF Color (colorless brilliance)
- VS1+ Clarity (visually flawless to the naked eye)
- Excellent Cut (perfect sparkle, every time)
That’s how you know your ring is always top quality, even before you see the stone.
(Example of IGI certificate shown below — you’ll receive your own unique certificate and video after purchase.)
" Want a different size or material? "
Just let us know your preferred carat weight and metal, and our team will send you adirect wholesale quote.
Crafted to Last. Guaranteed.
Every Luther’s Diamonds ring is handcrafted in our Atlanta studio. We include a Lifetime Warranty for any manufacturing defect.
- Free accent stone replacement (under 0.10ct) if it falls out because of craftsmanship
- One free resizing within 100 days
- Annual care + prong check recommended
- Your ring also comes with a professional diamond appraisal for insurance protection.
Learn More →
Ring Size Guide
US & Canada Ring Sizes
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 3 | 14.1 | 44.2 |
| 3.5 | 14.5 | 45.5 |
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48.0 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.7 |
| 8 | 18.2 | 57.0 |
| 8.5 | 18.6 | 58.3 |
| 9 | 19.0 | 59.5 |
| 9.5 | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
| 10.5 | 20.2 | 63.4 |
| 11 | 20.6 | 64.6 |
| 11.5 | 21.0 | 65.9 |
| 12 | 21.4 | 67.2 |
UK & Australia Ring Sizes
| UK Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| F | 14.1 | 44.2 |
| G | 14.5 | 45.5 |
| H | 14.9 | 46.8 |
| I | 15.3 | 48.0 |
| J | 15.7 | 49.3 |
| K | 16.1 | 50.6 |
| L | 16.5 | 51.9 |
| M | 16.9 | 53.1 |
| N | 17.3 | 54.4 |
| O | 17.7 | 55.7 |
| P | 18.2 | 57.0 |
| Q | 18.6 | 58.3 |
| R | 19.0 | 59.5 |
| S | 19.4 | 60.8 |
| T | 19.8 | 62.1 |
| U | 20.2 | 63.4 |
| V | 20.6 | 64.6 |
| W | 21.0 | 65.9 |
| X | 21.4 | 67.2 |
European Ring Sizes
| EU Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 44 | 14.1 | 44.2 |
| 45 | 14.5 | 45.5 |
| 46 | 14.9 | 46.8 |
| 48 | 15.3 | 48.0 |
| 49 | 15.7 | 49.3 |
| 50 | 16.1 | 50.6 |
| 52 | 16.5 | 51.9 |
| 53 | 16.9 | 53.1 |
| 54 | 17.3 | 54.4 |
| 56 | 17.7 | 55.7 |
| 57 | 18.2 | 57.0 |
| 58 | 18.6 | 58.3 |
| 60 | 19.0 | 59.5 |
| 61 | 19.4 | 60.8 |
| 62 | 19.8 | 62.1 |
| 63 | 20.2 | 63.4 |
| 65 | 20.6 | 64.6 |
| 66 | 21.0 | 65.9 |
| 67 | 21.4 | 67.2 |
Japanese Ring Sizes
| JP Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.5 | 45.5 |
| 5 | 14.9 | 46.8 |
| 6 | 15.3 | 48.0 |
| 7 | 15.7 | 49.3 |
| 8 | 16.1 | 50.6 |
| 9 | 16.5 | 51.9 |
| 10 | 16.9 | 53.1 |
| 11 | 17.3 | 54.4 |
| 12 | 17.7 | 55.7 |
| 13 | 18.2 | 57.0 |
| 14 | 18.6 | 58.3 |
| 15 | 19.0 | 59.5 |
| 16 | 19.4 | 60.8 |
| 17 | 19.8 | 62.1 |
| 18 | 20.2 | 63.4 |
| 19 | 20.6 | 64.6 |
| 20 | 21.0 | 65.9 |
| 21 | 21.4 | 67.2 |
Find Your Ring Size
Measure Your Finger
- Use a flexible measuring tape or length of string.
- Wrap it around the finger you'll wear your ring on. If you're creating a ring stack, consider where on your finger the ring will sit. If using string, mark the point on the string where the ends meet with a pen.
- Lay the string on a flat surface and use a ruler to measure the length (in inches or millimeters) up to the mark. Compare your measurement to the size chart to determine your ring size. If you are between sizes, opt for the larger size.
Measure an Existing Ring
- Choose a ring that already fits your finger well.
- Measure the interior diameter of the ring in millimeters (mm).
- Use the measurement chart to match the size of your ring to the closest size in mm. The interior of the ring should align with the outer edge of the circle.
Luther's At Your Service
There's no question too small or request too large for Luther's Diamonds client advisors. From choosing an engagement ring or gift to providing in-store or virtual appointments, we're always at your service.
