Blue Diamond Prelude Fillies
| Class | Group 2 |
|---|---|
| Location | Caulfield Racecourse, Sandown Racecourse |
| Inaugurated | 1982 (Listed race) |
| Race type | Thoroughbred |
| Sponsor | Sportsbet (2026) |
| Race information | |
| Distance | 1,100 metres |
| Surface | Turf |
| Track | Left-handed |
| Qualification | Two year old fillies |
| Weight | Set weights - 55½ kg |
| Purse | $350,000 (2026) |
The Blue Diamond Prelude Fillies is a Melbourne Racing Club Group 2 Thoroughbred horse race run under set weight conditions, for two-year-old fillies, over a distance of 1100 metres, held at Caulfield Racecourse in Melbourne, Australia in February.