| UK | US | EU | Japan | Inside Diameter (mm) | Inside Circumference (mm) |
|---|---|---|---|---|---|
| A | 1 | 40 | 1 | 11.5 | 36.1 |
| A½ | 1.5 | 40.5 | 1.5 | 11.8 | 37.1 |
| B | 2 | 41 | 2 | 12.1 | 38.0 |
| B½ | 2.5 | 41.5 | 2.5 | 12.3 | 38.6 |
| C | 3 | 42 | 3 | 12.6 | 39.6 |
| C½ | 3.5 | 42.5 | 3.5 | 12.9 | 40.5 |
| D | 4 | 43 | 4 | 13.2 | 41.5 |
| D½ | 4.5 | 43.5 | 4.5 | 13.5 | 42.4 |
| E | 5 | 44 | 5 | 13.8 | 43.3 |
| E½ | 5.5 | 44.5 | 5.5 | 14.1 | 44.3 |
| F | 6 | 45 | 6 | 14.4 | 45.2 |
| F½ | 6.5 | 45.5 | 6.5 | 14.7 | 46.2 |
| G | 7 | 46 | 7 | 15.0 | 47.1 |
| G½ | 7.5 | 46.5 | 7.5 | 15.3 | 48.1 |
| H | 8 | 47 | 8 | 15.6 | 49.0 |
| H½ | 8.5 | 47.5 | 8.5 | 15.9 | 49.9 |
| I | 9 | 48 | 9 | 16.2 | 50.9 |
| I½ | 9.5 | 48.5 | 9.5 | 16.5 | 51.8 |
| J | 10 | 49 | 10 | 16.8 | 52.8 |
| J½ | 10.5 | 49.5 | 10.5 | 17.1 | 53.7 |
| K | 11 | 50 | 11 | 17.4 | 54.7 |
| K½ | 11.5 | 50.5 | 11.5 | 17.7 | 55.6 |
| L | 12 | 51 | 12 | 18.0 | 56.5 |
| L½ | 12.5 | 51.5 | 12.5 | 18.3 | 57.5 |
| M | 13 | 52 | 13 | 18.6 | 58.4 |
| M½ | 13.5 | 52.5 | 13.5 | 18.9 | 59.4 |
| N | 14 | 53 | 14 | 19.2 | 60.3 |
| N½ | 14.5 | 53.5 | 14.5 | 19.5 | 61.2 |
| O | 15 | 54 | 15 | 19.8 | 62.2 |
| O½ | 15.5 | 54.5 | 15.5 | 20.1 | 63.1 |
| P | 16 | 55 | 16 | 20.4 | 64.1 |
| P½ | 16.5 | 55.5 | 16.5 | 20.7 | 65.0 |
| Q | 17 | 56 | 17 | 21.0 | 65.9 |
| Q½ | 17.5 | 56.5 | 17.5 | 21.3 | 66.9 |
| R | 18 | 57 | 18 | 21.6 | 67.8 |
| R½ | 18.5 | 57.5 | 18.5 | 21.9 | 68.8 |
| S | 19 | 58 | 19 | 22.2 | 69.7 |
| S½ | 19.5 | 58.5 | 19.5 | 22.5 | 70.7 |
| T | 20 | 59 | 20 | 22.8 | 71.6 |
| T½ | 20.5 | 59.5 | 20.5 | 23.1 | 72.5 |
| U | 21 | 60 | 21 | 23.4 | 73.5 |
| U½ | 21.5 | 60.5 | 21.5 | 23.7 | 74.4 |
| V | 22 | 61 | 22 | 24.0 | 75.4 |
| V½ | 22.5 | 61.5 | 22.5 | 24.3 | 76.3 |
| W | 23 | 62 | 23 | 24.6 | 77.2 |
| W½ | 23.5 | 62.5 | 23.5 | 24.9 | 78.2 |
| X | 24 | 63 | 24 | 25.2 | 79.1 |
| X½ | 24.5 | 63.5 | 24.5 | 25.5 | 80.1 |
| Y | 25 | 64 | 25 | 25.8 | 81.0 |
| Y½ | 25.5 | 64.5 | 25.5 | 26.1 | 81.9 |
| Z | 26 | 65 | 26 | 26.4 | 82.9 |
| Z½ | 26.5 | 65.5 | 26.5 | 26.7 | 83.8 |




2.31ct Emerald Cut Aquamarine Stone Engagement Ring - 18K Gold
Maximum 20 characters allowed.
International Shipping
We're delighted to offer complimentary international shipping (Outside UK) on all orders. Please note that while we cover shipping costs, customs duties, taxes, and import fees may apply upon delivery and are the sole responsibility of the recipient. These charges vary by country and are determined by your local customs authority.
2.31ct Emerald Cut Aquamarine Stone Engagement Ring in 18K White Gold
Centre Stone
- Type: Aquamarine
- Shape: Emerald cut
- Carat weight: 2.31ct
- Design: Elegant aquamarine centre stone
Setting Details
- Metal: 18K White Gold (Custom option available)
- Style: Engagement ring
- Design: Emerald cut aquamarine set in a timeless ring mount
- Ring size: M
- Availability: Ready to ship
- Look: Elegant, refined, and eye-catching with a fresh icy blue tone
Helpful Resources
Why Buy From Chloe’s Jewellers?
- Greville House, 35 Greville Street, London, EC1N 8TB
- +44 207 242 9454 | Info@chloesjewellers.com
- FREE worldwide shipping
- 21-day return policy
- 100% return refund guarantee
Choose options




2.31ct Emerald Cut Aquamarine Stone Engagement Ring - 18K Gold
Sale price£1,900.00 GBP
Regular price£2,300.00 GBP
| UK | US | EU | Japan | Inside Diameter (mm) | Inside Circumference (mm) |
|---|---|---|---|---|---|
| A | 1 | 40 | 1 | 11.5 | 36.1 |
| A½ | 1.5 | 40.5 | 1.5 | 11.8 | 37.1 |
| B | 2 | 41 | 2 | 12.1 | 38.0 |
| B½ | 2.5 | 41.5 | 2.5 | 12.3 | 38.6 |
| C | 3 | 42 | 3 | 12.6 | 39.6 |
| C½ | 3.5 | 42.5 | 3.5 | 12.9 | 40.5 |
| D | 4 | 43 | 4 | 13.2 | 41.5 |
| D½ | 4.5 | 43.5 | 4.5 | 13.5 | 42.4 |
| E | 5 | 44 | 5 | 13.8 | 43.3 |
| E½ | 5.5 | 44.5 | 5.5 | 14.1 | 44.3 |
| F | 6 | 45 | 6 | 14.4 | 45.2 |
| F½ | 6.5 | 45.5 | 6.5 | 14.7 | 46.2 |
| G | 7 | 46 | 7 | 15.0 | 47.1 |
| G½ | 7.5 | 46.5 | 7.5 | 15.3 | 48.1 |
| H | 8 | 47 | 8 | 15.6 | 49.0 |
| H½ | 8.5 | 47.5 | 8.5 | 15.9 | 49.9 |
| I | 9 | 48 | 9 | 16.2 | 50.9 |
| I½ | 9.5 | 48.5 | 9.5 | 16.5 | 51.8 |
| J | 10 | 49 | 10 | 16.8 | 52.8 |
| J½ | 10.5 | 49.5 | 10.5 | 17.1 | 53.7 |
| K | 11 | 50 | 11 | 17.4 | 54.7 |
| K½ | 11.5 | 50.5 | 11.5 | 17.7 | 55.6 |
| L | 12 | 51 | 12 | 18.0 | 56.5 |
| L½ | 12.5 | 51.5 | 12.5 | 18.3 | 57.5 |
| M | 13 | 52 | 13 | 18.6 | 58.4 |
| M½ | 13.5 | 52.5 | 13.5 | 18.9 | 59.4 |
| N | 14 | 53 | 14 | 19.2 | 60.3 |
| N½ | 14.5 | 53.5 | 14.5 | 19.5 | 61.2 |
| O | 15 | 54 | 15 | 19.8 | 62.2 |
| O½ | 15.5 | 54.5 | 15.5 | 20.1 | 63.1 |
| P | 16 | 55 | 16 | 20.4 | 64.1 |
| P½ | 16.5 | 55.5 | 16.5 | 20.7 | 65.0 |
| Q | 17 | 56 | 17 | 21.0 | 65.9 |
| Q½ | 17.5 | 56.5 | 17.5 | 21.3 | 66.9 |
| R | 18 | 57 | 18 | 21.6 | 67.8 |
| R½ | 18.5 | 57.5 | 18.5 | 21.9 | 68.8 |
| S | 19 | 58 | 19 | 22.2 | 69.7 |
| S½ | 19.5 | 58.5 | 19.5 | 22.5 | 70.7 |
| T | 20 | 59 | 20 | 22.8 | 71.6 |
| T½ | 20.5 | 59.5 | 20.5 | 23.1 | 72.5 |
| U | 21 | 60 | 21 | 23.4 | 73.5 |
| U½ | 21.5 | 60.5 | 21.5 | 23.7 | 74.4 |
| V | 22 | 61 | 22 | 24.0 | 75.4 |
| V½ | 22.5 | 61.5 | 22.5 | 24.3 | 76.3 |
| W | 23 | 62 | 23 | 24.6 | 77.2 |
| W½ | 23.5 | 62.5 | 23.5 | 24.9 | 78.2 |
| X | 24 | 63 | 24 | 25.2 | 79.1 |
| X½ | 24.5 | 63.5 | 24.5 | 25.5 | 80.1 |
| Y | 25 | 64 | 25 | 25.8 | 81.0 |
| Y½ | 25.5 | 64.5 | 25.5 | 26.1 | 81.9 |
| Z | 26 | 65 | 26 | 26.4 | 82.9 |
| Z½ | 26.5 | 65.5 | 26.5 | 26.7 | 83.8 |
Maximum 20 characters allowed.


