Guesthouse
1920s Deco Emerald Band
1920s Deco Emerald Band
Ring Sizing Guide
How to Determine
Your Ring Size
Method 1 — Using a ring you already own
- Print this guide with page scaling set to 100%.
- Place a ring you already own over the circles on the right.
- Match the inside of the ring to the circle nearest in size. Measurements refer to the inside diameter of the ring.
- If the ring falls between two sizes, order the larger size.
Please note
- Consider band width. The wider the band, the tighter it may feel — you may need to go up by half a size.
- This guide serves as a reference. For a more accurate fit, contact us for a complimentary sizing consultation.
Method 2 — String or paper
- Wrap a thin strip of paper around your finger at the knuckle.
- Mark where the paper overlaps and measure the length in mm.
- Divide by 3.14 to get your diameter, then match to the chart.
- Measure in the evening when fingers are at their largest.
Find your size across different regional systems. US & Canada sizes are highlighted for quick reference.
| Diameter (mm) | US & Canada | Europe | UK & Australia | Singapore & Japan | Hong Kong | Switzerland |
|---|---|---|---|---|---|---|
| 14.1 | 3 | 44 | F 1/2 | 4 | 6 | 4 |
| 14.3 | 45 | G | 5 | 5 1/4 | ||
| 14.5 | 3.5 | G 1/2 | 7 | |||
| 14.7 | 46 | H | 6 | 6 1/2 | ||
| 14.9 | 4 | 47 | H 1/2 | 7 | 8 | |
| 15.1 | I | 7 3/4 | ||||
| 15.3 | 4.5 | 48 | I 1/2 | 8 | 9 | |
| 15.5 | J | 10 | 9 | |||
| 15.7 | 5 | 49 | J 1/2 | 9 | ||
| 15.9 | 50 | K | 11 | 10 | ||
| 16.1 | 5.5 | K 1/2 | 10 | |||
| 16.3 | 51 | L | 12 | 11 3/4 | ||
| 16.5 | 6 | 52 | L 1/2 | 11 | 13 | 12 3/4 |
| 16.7 | M | 12 | ||||
| 16.9 | 6.5 | 53 | M 1/2 | 13 | 14 | 14 |
| 17.1 | N | |||||
| 17.3 | 7 | 54 | N 1/2 | 14 | 15 | 15 1/4 |
| 17.5 | 55 | O | 16 | |||
| 17.7 | 7.5 | O 1/2 | 15 | 16 1/2 | ||
| 17.9 | 56 | P | 17 | |||
| 18.1 | 8 | 57 | P 1/2 | 16 | 17 3/4 | |
| 18.5 | 8.5 | 58 | Q 1/2 | 17 | ||
| 18.8 | 59 | R | 19 | 19 | ||
| 19.0 | 9 | R 1/2 | 18 | 20 | ||
| 19.2 | 60 | S | 20 1/4 | |||
| 19.4 | 9.5 | 61 | S 1/2 | 19 | 21 | |
| 19.8 | 10 | 62 | T 1/2 | 20 | 22 | |
| 20.2 | 10.5 | 63 | U 1/2 | 22 | 23 | 22 3/4 |
| 20.6 | 11 | V 1/2 | 23 | |||
| 21.0 | 11.5 | 65 | W | 24 | 25 | 25 |
| 21.4 | 12 | 67 | X 1/2 | 25 | 27 | 27 1/2 |
| 21.8 | 12.5 | 68 | Z | 26 | 28 3/4 | |
| 22.2 | 13 | 70 | Z 1/2 | 27 | ||
| 22.6 | 13.5 | Z+2 |
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Description
Description
An Art Deco-inspired emerald-cut diamond, bezel-set on a fluted band. Originating in Paris, France, this design style became widely popular from the 1920s to the late 1930s, an era defined by optimism, the rise of modern cities, and the growing independence of women. The repeating curves catch the light from every angle, creating texture and depth while maintaining a clean, architectural silhouette.
Materials & Specifications
Materials & Specifications
Metal: Solid gold
Centre stone: Lab grown emerald cut diamond (0.45ct)

Before you buy
Can I see it in real life?
Yes. You're welcome to visit us at our Seoul showroom, arrange a virtual consultation, or request additional real-life photos and videos via WhatsApp.
When will I receive my order?
Each piece is made to order within 2-4 weeks. We will send you a photo of your finished item fresh out of our workshop before dispatch. Upon dispatch, we will send you a tracking number via WhatsApp so we can follow its journey every step of the way.
How do I measure my ring size?
You can refer to our ring sizing guide, or WhatsApp us before ordering. We can also send a complimentary ring sizer with your order confirmation.