1 | Bulbasaur | Diamond | Trade2 | Ivysaur | Diamond | Trade | 3 | Venusaur | Diamond | Trade | 4 | Charmander | Diamond | Trade, Event | 5 | Charmeleon | Diamond | Trade, Evolve Charmander (Lv. 16) | 6 | Charizard | Diamond | Trade | 7 | Squirtle | Diamond | Trade | 8 | Wartortle | Diamond | Trade | 9 | Blastoise | Diamond | Trade | 10 | Caterpie | Diamond | Route 204 (FireRed) | 11 | Metapod | Diamond | Eterna Forest (FireRed) | 12 | Butterfree | Diamond | Evolve Metapod (Lv. 10) | 13 | Weedle | Diamond | Route 204 (LeafGreen) | 14 | Kakuna | Diamond | Eterna Forest (LeafGreen) | 15 | Beedrill | Diamond | Evolve Kakuna (Lv. 10) | 16 | Pidgey | Diamond | Route 229 (Swarm) | 17 | Pidgeotto | Diamond | Evolve Pidgey (Lv. 18) | 18 | Pidgeot | Diamond | Evolve Pidgeotto (Lv. 36) | 19 | Rattata | Diamond | Routes 225, 226 | 20 | Raticate | Diamond | Routes 225, 226 | 21 | Spearow | Diamond | Routes 225, 226 | 22 | Fearow | Diamond | Routes 225, 226, 227, Stark Mountain | 23 | Ekans | Diamond | Route 212 (FireRed) | 24 | Arbok | Diamond | Great Marsh (FireRed) | 25 | Pikachu | Diamond | Trophy Garden | 26 | Raichu | Diamond | Evolve Pikachu (Thunder Stone) | 27 | Sandshrew | Diamond | Wayward Cave (LeafGreen) | 28 | Sandslash | Diamond | Route 228 (LeafGreen) | 29 | NidoranF | Diamond | Route 201 (Poke Rader) | 30 | Nidorina | Diamond | Route 221, Valor Lakefront (Poke Radar) | 31 | Nidoqueen | Diamond | Evolve Nidorina (Moon Stone) | 32 | NidoranM | Diamond | Route 201 (Poke Radar) | 33 | Nidorino | Diamond | Route 221, Valor Lakefront (Poke Radar) | 34 | Nidoking | Diamond | Evolve Nidorino (Moon Stone) | 35 | Clefairy | Diamond | Mt. Coronet, Trophy Garden | 36 | Clefable | Diamond | Evolve Clefairy (Moon Stone) | 37 | Vulipx | Diamond | Routes 209, 214 (LeafGreen) | 38 | Ninetales | Diamond | Evolve Vulpix (Fire Stone) | 39 | Jigglypuff | Diamond | Trophy Garden | 40 | Wigglytuff | Diamond | Evolve Jigglypuff (Moon Stone) | 41 | Zubat | Diamond | Iron Island, Oreburgh Mine, Wayward Cave, Lost Tower (Walking)
| Routes 203, 204, 206, 207, 208, 209, 211, 216, 217, Acuity Lakefront (Tall grass) (Night) Ravaged Path, Oreburgh Gate, Mt. Coronet (Surfing and walking) 42 | Golbat | Diamond | Ravaged Path, Oreburgh Gate, Victory Road, Mt. Coronet (Surfing)
| Stark Mountain, Mt. Coronet, Victory Road, Iron Island, Snowpoint Temple, Lost Tower, Turnback Cave Route 227 (Night) 43 | Oddish | Diamond | Routes 229, 230 | 44 | Gloom | Diamond | Routes 224, 229, 230 | 45 | Vileplume | Diamond | Evolve Gloom (Leaf Stone) | 46 | Paras | Diamond | Great Marsh | 47 | Parasect | Diamond | Evolve Paras (Lv. 24) | 48 | Venonat | Diamond | Route 229 (Poke Radar) | 49 | Venomoth | Diamond | Route 229 (Poke Radar) | 50 | Diglett | Diamond | Route 228 | 51 | Dugtrio | Diamond | Route 228 | 52 | Meowth | Diamond | Trophy Garden | 53 | Persian | Diamond | Evolve Meowth (Lv. 28) | 54 | Psyduck | Diamond | Routes 203, 204, 205, 208, 209, 210, 212, 214, Twinleaf Town, Eterna City, Lake Verity, Celestic Town (Surfing)
| Routes 208, 210, Lake Acuity, Lake Valor, Great Marsh Oreburgh Gate, Ravaged Path (Walking and surfing) 55 | Golduck | Diamond | Routes 203, 204, 205, 208, 209, 210, 212, 214, 225, Twinleaf Town, Eterna City, Celestic Town, Ravaged Path, Oreburgh Gate, Lake Verity, Lake Acuity, Lake Valor, Sendoff Spring, Resort Area (Surfing)
| Routes 226, 230, Great Marsh, Sendoff Spring 56 | Mankey | Diamond | Routes 225, 226 (Poke Radar) | 57 | Primeape | Diamond | Routes 225, 226 (Poke Radar) | 58 | Growlithe | Diamond | Routes 201, 202 (FireRed) | 59 | Arcanine | Diamond | Evolve Growlithe (Fire Stone) | 60 | Poliwag | Diamond | Route 225 (Good Rod)
| Routes 227, 228 (Surfing) 61 | Poliwhirl | Diamond | Route 225 (Super Rod)
| Routes 227, 228 (Surfing) 62 | Poliwrath | Diamond | Evolve Poliwhirl (Water Stone) | 63 | Abra | Diamond | Routes 203, 215
| Trade Machop in Oreburgh City 64 | Kadabra | Diamond | Route 215, Victory Road | 65 | Alakazam | Diamond | Evolve Kadabra (Trade) | 66 | Machop | Diamond | Routes 207, 208, 210, Mt. Coronet | 67 | Machoke | Diamond | Routes 210, 211, 216, 217, 225, 226, Stark Mountain, Mt. Coronet, Victory Road, Acuity Lakefront | 68 | Machamp | Diamond | Evolve Machoke (Trade) | 69 | Bellsprout | Diamond | Routes 229, 230 | 70 | Weepinbell | Diamond | Routes 224, 229, 230 | 71 | Victreebel | Diamond | Evolve Weepinbell (Leaf Stone) | 72 | Tentacool | Diamond | Routes 205, 213, 218, 219, 220, 221, 222, Canalave City, Pastoria City, Fuego Ironworks, Valley Windworks, Iron Island (Surfing) | 73 | Tentacruel | Diamond | Routes 205, 213, 218, 219, 220, 221, 222, 223, 224, 226, 230, Pastoria City, Canalave City, Sunyshore City, Valley Windworks, Fuego Ironworks, Iron Island, Pokémon League (Surfing) | 74 | Geodude | Diamond | Routes 206, 207, 210, 211, 214, 215, Oreburgh Gate, Ruin Maniac Cave, Oreburgh Mine, Iron Island, Mt. Coronet, Maniac Tunnel, Ravaged Path, Stark Mountain, Valor Lakefront, Wayward Cave | 75 | Graveler | Diamond | Routes 211, 214, 216, 227, Valor Lakefront, Iron Island, Mt. Coronet, Victory Road, Stark Mountain, Snowpoint Templ | 76 | Golem | Diamond | Evolve Graveler (Trade) | 77 | Ponyta | Diamond | Routes 206, 210, 211, 214, 215 | 78 | Rapidash | Diamond | Evolve Ponyta (Lv. 40) | 79 | Slowpoke | Diamond | Trade | 80 | Slowbro | Diamond | Trade | 81 | Magnemite | Diamond | Fuego Ironworks (Swarm) | 82 | Magneton | Diamond | Evolve Magnemite (Lv. 30) | 83 | Farfetch'd | Diamond | Route 221 (Swarm) | 84 | |