Alexandrite Accent Upgrade — The Rapunzel
Handcrafted by our family workshop · Made to order
- Fully Insured Worldwide Shipping
- Lifetime Craftsmanship Warranty
- Complimentary Stone Inlay® and Engraving
Before you order
Good to know
When will it arrive?
About 4–5 weeks to your door. Every piece is made to order in our studio, then shipped free, fully insured and signature-required.
Have a proposal or wedding date? Tell us before you order and we'll confirm honestly whether we can make it.
How do I get my size right?
Please take a minute with it. Use our printable sizing guide at 100% scale, measure at the end of the day, and measure twice. Quarter sizes are fine, and we can work from US, EU or mm. We confirm your size with you before we start.
If your size ever changes, our family team will walk you through the options, but a ring built in your size from day one always wears best.
Engraving & Stone Inlay®: what's included?
Both are on us. Engraving: up to 9 characters, spaces included (like “J&A 2027”). Your handwriting is free too. A custom font or placement is $75, since it needs its own CAD.
Stone Inlay®: two small birthstones set into your band, often yours and theirs.
Is the gemstone certified?
Yes. Your gemstone comes with a report from AGL (Antwerp Gemological Laboratory), so you know exactly what you're wearing. Any diamonds are graded DEF color, VS2+ clarity.
Is it ethically sourced?
Your alexandrite is lab-grown, with the true color change of the natural stone: green by day, violet by lamplight. Natural alexandrite is one of the rarest mined gems. Ours gives you that same change with no mine behind it.
It comes with a report from AGL (Antwerp Gemological Laboratory), so you know exactly what you're wearing.
Adding Stone Inlay®? Those birthstones vary: some are lab-grown and some are natural. Just ask about yours.
Can I return it?
You can cancel for a full refund before production starts. Once your piece is at the bench it's a final sale, since it's made to your exact choices. If it arrives damaged or has a craftsmanship issue, tell us within 14 days and we'll make it right.
More answers in our FAQ, or start a custom build.
Color-change alexandrite accent stones for The Rapunzel, in place of the diamond accents. Teal-green in daylight, purple in warm lamplight. Added automatically when you choose Alexandrite accents.
Luther's Signature Customization
Included with your ring — a personal touch from our studio.
A message, a date, a quiet detail only you’ll know is there.
A hidden gemstone set inside your band — often a birthstone or something deeply personal.
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Explore available inlay gemstones here.
Leave your engraving and inlay preferences at checkout.
We’ll confirm everything with you after your order.
Crafted to Last. Guaranteed.
Every Luther’s Diamonds piece is handcrafted in our Atlanta studio. We include a Lifetime Craftsmanship Warranty for any manufacturing defect.
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.
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