JoJo's Bizarre Adventure - JOJO Diamond College Ring [Pre-Order Apr 2026]
JOJO'S BIZARRE ADVENTURE - JOJO DIAMOND COLLEGE RING
| Japan Size | Inner Circumference (mm) | EU Size | US Size (Approx.) |
| 7 | 46.8 | 47 | 4 |
| 9 | 49.3 | 49 | 5 |
| 11 | 51.9 | 52 | 6 |
| 13 | 53.1 | 53 | 6.5–7 |
| 15 | 55.7 | 55–56 | 7.5 |
| 17 | 58.3 | 58 | 8.5 |
| 19 | 60.8 | 61 | 9.5 |
| 21 | 62.7 | 62–63 | 10.5 |
Note: Ring size conversions may vary slightly depending on manufacturer and design. If you are between sizes, we recommend choosing the larger size. For the best fit, measure your finger’s inner circumference in millimeters.
If the number of pre-orders exceeds availability, some orders may be canceled. Remember to place your pre-order early.
PRODUCT DETAILS |
|
| Product Name | JoJo's Bizarre Adventure - JOJO Diamond College Ring |
| Product Type | Jewelry |
| Package Content | 1x Ring (official Japanese product brand new) |
| Release Date | April 2026 |
| Manufacturer | Jam Home Made |
| Size |
Available Sizes: 7, 9, 11, 13, 15, 17, 19, 21 Please, check the conversion table above. |
| Product Line | Other Product Line |
| Language |
Japanese
|
| Materials | Silver 925, diamond, cubic zirconia |
| Themes | Manga & Animations |
| Character | |
| Series |
JoJo's Bizarre Adventure
|
Original: $149.99
-65%$149.99
$52.50







Description
JOJO'S BIZARRE ADVENTURE - JOJO DIAMOND COLLEGE RING
| Japan Size | Inner Circumference (mm) | EU Size | US Size (Approx.) |
| 7 | 46.8 | 47 | 4 |
| 9 | 49.3 | 49 | 5 |
| 11 | 51.9 | 52 | 6 |
| 13 | 53.1 | 53 | 6.5–7 |
| 15 | 55.7 | 55–56 | 7.5 |
| 17 | 58.3 | 58 | 8.5 |
| 19 | 60.8 | 61 | 9.5 |
| 21 | 62.7 | 62–63 | 10.5 |
Note: Ring size conversions may vary slightly depending on manufacturer and design. If you are between sizes, we recommend choosing the larger size. For the best fit, measure your finger’s inner circumference in millimeters.
If the number of pre-orders exceeds availability, some orders may be canceled. Remember to place your pre-order early.
PRODUCT DETAILS |
|
| Product Name | JoJo's Bizarre Adventure - JOJO Diamond College Ring |
| Product Type | Jewelry |
| Package Content | 1x Ring (official Japanese product brand new) |
| Release Date | April 2026 |
| Manufacturer | Jam Home Made |
| Size |
Available Sizes: 7, 9, 11, 13, 15, 17, 19, 21 Please, check the conversion table above. |
| Product Line | Other Product Line |
| Language |
Japanese
|
| Materials | Silver 925, diamond, cubic zirconia |
| Themes | Manga & Animations |
| Character | |
| Series |
JoJo's Bizarre Adventure
|






















