Step 1
Grinding the Band
Cast in solid gold, the band is first ground down by hand to its true shape and width, and the seat for the stones is prepared all the way around the circle.
Shown: our 6mm Colombian emerald band
Emerald, all the way round
A line of green,
unbroken.
Each emerald is chosen to sit beside the next, matched in tone so the row reads as one continuous line of color, then set by hand in solid gold.
Full eternityhow far the stones go
4mmband width
2.50 cttotal gem weight
Build your stack
Wear it three ways.
-
Engagement ringThe Tiffany
From $1,650 →
-
Wedding bandThe Vine Twist
From $850 →
-
Your bandColombian Emerald & Diamond Eternity Band
Choose your metal →
The slim twist lets the emerald-and-diamond center band remain prominent.
Styling preview · engagement ring shown at 2ct
From Our Workshop · Set Stone by Stone
Watch how your eternity band is made.
An eternity band is a single unbroken circle of stones, and every one is set by hand, all the way around, in our family workshop. These are the stages yours passes through before it reaches you.
Step 2
Setting the Eternity of Stones
This is the heart of it. Every emerald is set into the band by hand, one after another, all the way around, each stone aligned to the last so the row reads as one continuous line of green. On a full eternity, that's hours of patient, exacting work.
Step 3
Hand Polished
With the full circle set, the band is hand-polished through progressively finer abrasives until the gold is mirror-bright and every emerald sits clean and clear.
Step 4
The Finished Band
The result: an endless loop of Colombian green, even and bright from every angle. Jack checks each stone and the full circle personally before it leaves the workshop.
Every Detail
Specifications & certification.
Specifications
Material
14K Solid Gold or Platinum 950
Main Stone
Emerald
Band Width
4mm
Key features
Certified & documented.
Lab-Grown Emerald Quality
We source only high-grade lab-grown emeralds, chosen for their deep saturation and vivid color. Like all emeralds, each stone carries fine natural inclusions; we select ours at just the right level, present enough to read as a true emerald, never so much as to cloud the color or dull the brilliance. The result is a clean, lively green across the whole band.
Your Certificate
Your eternity band arrives with an AGL certificate documenting the finished piece (its metal, the emerald specifications and total carat weight) for your records and insurance. Each band is registered with a unique identification code for secure reference.
About AGL
Antwerp Gemological Laboratory (AGL) is an independent lab specializing in colored-gemstone certification. Their reports give a detailed, transparent analysis of each stone's quality.
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.
Before you choose
Questions, answered.
Still wondering about something? Write to our family studio and Jack will answer personally. Ask us
Is it comfortable to wear every day?
Yes. Each stone is set low and close, and every edge is hand-polished smooth, so the band sits comfortably beside your engagement ring and doesn't catch on hair or knitwear.
How do I choose my size?
Pick your size in the options above. If you're unsure, open the ring size guide on this page to measure at home. Between two sizes? Choose the larger one, so the band slips over the knuckle comfortably. Before we start making your band, we confirm the size with you, so it's right the first time.
What if my size changes later?
Because the stones run all the way around, a full eternity band can't be sized up or down the usual way. That's why we take extra care to confirm your size before we make it. If your size ever changes, write to us and our family studio will talk you through the options.
How long does it take?
Every band is made to order by hand in our family studio. Most ship in about 4 weeks, fully insured, and we keep you updated along the way.
What does the warranty cover?
Every piece comes with our lifetime craftsmanship warranty against manufacturing defects. If a stone ever comes loose, we'll send you a replacement stone.
From the same garden
