Why Early Diamonds Matter
Diamond vs iron: 5x durability (250->1561), +1 heart damage, +30% mining speed. Early diamonds = skip iron age, mine obsidian for enchanting tables, build large chests. For speedrunners, a good diamond seed is everything.
Top Diamond Seeds
Seed 438250: 8 diamonds at X:48 Y:-54 Z:-62 (Bedrock 1.21). Seed diamond: 12 diamonds (2 veins) at X:-120 Y:-52 Z:80 (Bedrock 1.21). Best strategy: mine 5 -> pickaxe+enchanting table -> Fortune III -> mass mine.
Warning: Diamonds only generate at Y=-54 to Y=-58. Don't waste time above Y=-50 — diamond probability drops near zero.