Anyone know a good way to get diamonds in GregTech while in the bronze age? I know that diamond ore can be smelted into diamonds, but it requires a diamond-level pickaxe to mine, as do topaz, Thaumcraft shards, and all the other GT ores that give diamond-level gems that I tested. Small diamond ore can be mined with an iron pick, but only drops crushed ore, which requires an electric-powered sifting machine or implosion compressor to get actual diamonds.
HSLA steel works, but there doesn't seem to be any way to obtain it without RotaryCraft, which I don't have, because Resurrection.