Gents 9ct Gold Blue John Stone Signet Ring
A solid 9ct Gold Blue John stone gents signet ring.
Blue John is a unique stone only found in the Castleton area of Derbyshire, England.
Hallmarked: Sheffield 2018
Markersmark: ASD
Weight: 10.0 grams
Size: S 1/2
Pre-owned, in excellent condition.
View Ring Size Conversion Chart
Ring Size Conversion Chart
| UK Size |
US Size |
EU Size (Circumference mm) |
| D | 2 | 41.5 |
| D½ | 2¼ | 42.1 |
| E | 2½ | 42.8 |
| E½ | 2¾ | 43.4 |
| F | 3 | 44.0 |
| F½ | 3¼ | 44.6 |
| G | 3½ | 45.2 |
| G½ | 3¾ | 45.9 |
| H | 4 | 46.5 |
| H½ | 4¼ | 47.1 |
| I | 4½ | 47.8 |
| I½ | 4¾ | 48.4 |
| J | 5 | 49.0 |
| J½ | 5¼ | 49.6 |
| K | 5½ | 50.3 |
| K½ | 5¾ | 50.9 |
| L | 6 | 51.5 |
| L½ | 6¼ | 52.1 |
| M | 6½ | 52.8 |
| M½ | 6¾ | 53.4 |
| N | 7 | 54.0 |
| N½ | 7¼ | 54.6 |
| O | 7½ | 55.3 |
| O½ | 7¾ | 55.9 |
| P | 8 | 56.5 |
| P½ | 8¼ | 57.2 |
| Q | 8½ | 57.8 |
| Q½ | 8¾ | 58.4 |
| R | 9 | 59.0 |
| R½ | 9¼ | 59.7 |
| S | 9½ | 60.3 |
| S½ | 9¾ | 60.9 |
| T | 10 | 61.6 |
| T½ | 10¼ | 62.2 |
| U | 10½ | 62.8 |
| U½ | 10¾ | 63.5 |
| V | 11 | 64.1 |
| V½ | 11¼ | 64.7 |
| W | 11½ | 65.3 |
| W½ | 11¾ | 66.0 |
| X | 12 | 66.6 |
| X½ | 12¼ | 67.2 |
| Y | 12½ | 67.8 |
| Y½ | 12¾ | 68.5 |
| Z | 13 | 69.1 |
| Z½ | 13½ | 69.7 |
Out of stock
