Domestic-league season · Stockport County.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 League One | 48 | 6 | 7 | 3280 | 6.95 |
 EFL Trophy | 6 | 1 | 0 | 433 | 6.75 |
 League Cup | 2 | 0 | 0 | 54 | 6.45 |
Diamond's current-season form is up 61% on last season (Season 18→29), while his Rating held around 47. That makes this his strongest season for form to date.
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Stockport County · 3rd | 48 | 6 | 7 | 6.95 | 47 | 29 |
| 2024/25 | Stockport County · 3rd | 39 | 5 | 3 | 6.88 | 47 | 18 |
| 2023/24 | Carlisle · 24th | 18 | 0 | 0 | 6.61 | 38 | 0 |
| 2022/23 | Lincoln · 11th | 31 | 6 | 4 | 6.88 | 50 | 24 |
| 2021/22 | Harrogate Town · 19th | 17 | 5 | 6 | 6.81 | 32 | 19 |
| 2020/21 | Sunderland · 4th | 26 | 1 | 3 | 6.74 | 45 | 8 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
J. Diamond is a 26-year-old attacking midfielder at Stockport County, rated 47.4 overall by Field Insider's model, ranking 69th of 482 in the League One. In his prime years, he has been a regular starter this season (74.4% of available minutes). He brings 0.36 goal contributions per 90 (0.17 goals, 0.19 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Diamond.
Judged on this season alone, Diamond graded 29 — a strong campaign that ranks top 27% of the 73 attacking midfielders in the League One, on 6 goals and 7 assists in 48 appearances (0.357 involvements per 90).
Year-on-year, that's a clear step up on last season (Season 18 → 29). Across the 6 seasons we hold, it's his best return yet.
On long-term talent our Rating reads 47, top 21% of the 73 attacking midfielders in the League One. At 26 Diamond is in his prime years, and a market index of 29.4 reflects that trajectory.
A career still climbing — Diamond is at his peak right now, and the curve hasn't flattened.
6 goals in 48 appearances (0.13 per game) for an upper-table side. He also laid on 7 assists, so the all-round involvement reads 13 goal contributions (0.27 per appearance).
With a Rating of 47.4, Diamond carries the 15th-highest potential of the attacking midfielders in the League One (top 21%). In the final third he profiles as a productive contributor (0.36 goal contributions per 90). In the prime window — at or near peak market value, so the next two seasons are the ones to cash in or build around.
Generated from Field Insider's rating model · AI-written analysis to follow.
The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~29), then tapers with age. At 26, Diamond sits on 29.4, at or near its peak. The blue line is Diamond's projected Rating — 47.4 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.
No transfer news found for this player.
