| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. A Diamant vs P Wang |
| 0-1 | 28 |
2000 |
World Under 10 Ch | B23 Sicilian, Closed |
| 2. A Diamant vs G Rohit |
 | 0-1 | 23 |
2001 |
WYB12 | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 3. A Diamant vs I Khairullin |
| ½-½ | 16 |
2001 |
WYB12 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 4. A Diamant vs A Susilodinata |
| 0-1 | 45 |
2001 |
WYB12 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 5. I Nepomniachtchi vs A Diamant |
| 0-1 | 57 |
2001 |
WYB12 | B22 Sicilian, Alapin |
| 6. M Lopez vs A Diamant |
| ½-½ | 10 |
2001 |
Guaymallen PanAM-chJ U12 Absoluto | B32 Sicilian |
| 7. A Diamant vs T Banusz |
| 1-0 | 32 |
2001 |
WYB12 | B31 Sicilian, Rossolimo Variation |
| 8. G Needleman vs A Diamant |
 | 0-1 | 52 |
2001 |
Guaymallen PanAM-chJ U12 Absoluto | B32 Sicilian |
| 9. R Jumabayev vs A Diamant |
| 1-0 | 49 |
2001 |
WYB12 | B32 Sicilian |
| 10. J H Gomez-Baillo vs A Diamant |
| 0-1 | 56 |
2003 |
7th Itau Cup | B30 Sicilian |
| 11. Carlsen vs A Diamant |
 | 1-0 | 32 |
2003 |
WYCC - B14 | C45 Scotch Game |
| 12. M Crosa Coll vs A Diamant |
| 1-0 | 24 |
2004 |
CXSP Open | B05 Alekhine's Defense, Modern |
| 13. S Trofimov vs A Diamant |
| 1-0 | 55 |
2005 |
BELFORT YWCC Boys Under 16 | D20 Queen's Gambit Accepted |
| 14. P Michalik vs A Diamant |
| 1-0 | 36 |
2005 |
BELFORT YWCC Boys Under 16 | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 15. D Vocaturo vs A Diamant |
| 0-1 | 47 |
2005 |
BELFORT YWCC Boys Under 16 | B05 Alekhine's Defense, Modern |
| 16. A Diamant vs Lenderman |
| 0-1 | 77 |
2005 |
BELFORT YWCC Boys Under 16 | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 17. I Brener vs A Diamant |
| 1-0 | 35 |
2005 |
BELFORT YWCC Boys Under 16 | E06 Catalan, Closed, 5.Nf3 |
| 18. A Diamant vs G Vescovi |
| 0-1 | 83 |
2006 |
BRA-ch 73rd | C84 Ruy Lopez, Closed |
| 19. A Diamant vs G Vescovi |
| ½-½ | 26 |
2006 |
Sao Paulo Ciudade | C07 French, Tarrasch |
| 20. A Diamant vs N Delgado Ramirez |
| ½-½ | 26 |
2006 |
2nd Magistral Guarapi | A21 English |
| 21. N Mayorga vs A Diamant |
| ½-½ | 19 |
2007 |
III South American Ch U20 | B46 Sicilian, Taimanov Variation |
| 22. A Diamant vs A Fier |
| ½-½ | 23 |
2007 |
III South American Ch U20 | B50 Sicilian |
| 23. A Diamant vs J Cori |
| 1-0 | 75 |
2007 |
III South American Ch U20 | C05 French, Tarrasch |
| 24. J Zabala vs A Diamant |
| 0-1 | 30 |
2007 |
III South American Ch U20 | B46 Sicilian, Taimanov Variation |
| 25. Granda-Zuniga vs A Diamant |
| 1-0 | 50 |
2007 |
CAMPEONATO CONTINENTAL ABSOLUT | A30 English, Symmetrical |