Blue Diamond Stakes
| Class | Group 1 |
|---|---|
| Location | Caulfield Racecourse |
| Inaugurated | 1971 |
| Race type | Thoroughbred |
| Sponsor | Sportsbet (2025) |
| Race information | |
| Distance | 1,200 metres |
| Surface | Turf |
| Qualification | Two year old |
| Weight | Set weights colts and geldings – 56+1⁄2 kg fillies – 54+1⁄2 kg |
| Purse | $2,000,000 (2025) |
The Blue Diamond Stakes is a Melbourne Racing Club Group 1 Thoroughbred horse race for two-year-olds, at set weights, run over 1200 metres at Caulfield Racecourse in Melbourne, Victoria, Australia. The event is Victoria's richest two-year-old race with total prize money of A$2,000,000.